PHY102 module 4 exam 1

Question # 8 00591173
Subject: Physics
Due on: 07/23/2018
Posted On: 07/24/2018 03:45 AM
Tutorials: 1
Rating:
4.9/5
Yourexpert
Posted By :
Questions:
8424
Tutorials:
8763
Feedback Score:
Report this Question as Inappropriate
Question Dot Image

PHY 102 MOD 4 Exam

30 Questions

HIGLIGHT THE SINGLE CORRECT RESPONE

1. Which of the following activities best illustrates the practices of the scientific method?

a. Deciding on the materials necessary to build a terrarium.

b. Following the instructions to construct an electric generator.

c. Measuring the time for an object to fall from different heights.

d. Designing an electric circuit for a radio.

2. What cannot be the outcome of a science experiment?

a. A theory is supported.

b. A theory is disproven.

c. A theory is proven.

d. A theory is further refined.

3. A truck makes a sharp turn and a box falls out of the truck bed. This is best explained using:

a. the law of inertia.

b. Newton’s second law of motion.

c. the law of action and reaction.

d. Newton’s third law of motion.

4. If an object increases its speed by the same amount each second, its acceleration:

a. also increases each second.

b. is constant.

c. decreases each second.

d. can either increase or decrease depending on the circumstances

5. Which of the following is NOT a part of the scientific method?

a. Making a guess about the possible outcome.

b. Perform experiments to test the predictions.

c. Organize and analyze the data collected.

d. Repeating a measurement until you get the desired result.

e. Formulating a rule based on the experimental results.

6. Consider a basketball player making a jump shot. Once the player's feet leave the floor, the player's acceleration:

a. depends on the speed of the player.

b. depends on the forward motion of the player.

c. depends on the athletic ability of the player.

d. is equal to 10 m/s2.

7. The acceleration of an object is caused by:

a. a change in speed.

b. a change in velocity.

c. a change in direction.

d. an unbalanced force.

8. Which of the following describes an accelerated motion?

a. Driving uphill at a constant speed.

b. Driving downhill at a constant speed.

c. Driving around a circle at a constant speed.

d. Driving on a straight road at a constant speed.

9. A ball is placed at the top of a hill and then released. After 5 seconds it has a speed of 20 m/s. What is the average acceleration of the ball?

a. 10 m/s2

b. 0 m/s2

c. 100 m

d. 5 m/s2

e. 4 m/s2

10. A circus performer with a weight of 700 N hangs from the middle of a bar supported by a vertical rope at each end. What is the tension force in each rope?

a. 700 N

b. 1400 N

c. 350 N

d. 1050 N

e. 0 N

11. Which object has the greatest momentum?

a. A truck parked on the street.

b. A man walking up a flight of stairs.

c. A race car going around a turn at high speed.

d. A bicyclist rolling downhill.

e. A salmon swimming upstream.

12. Which of the following has the greatest density?

a. A 10 g object with a volume of 10 cubic centimeter.

b. A 40 g object with a volume of 20 cubic centimeter.

c. A 20 g object with a volume of 5 cubic centimeter.

d. A 10 g object with a volume of 2 cubic centimeter.

13. A 12 kg box is pulled across the floor with a 48 N horizontal force. If the force of friction is 12 N, what is the acceleration of the box?

a. 3 m/s2

b. 5 m/s2

c. 10 m/s2

d. 1 m/s2

e. 4 m/s2

14. A satellite orbits the earth in a circle with constant speed. Which of the following is true?

a. The net force on the satellite is zero because the satellite is not accelerating.

b. The net force on the satellite is directed forward, in the direction of travel.

c. The net force on the satellite is directed straight down, toward the Earth.

d. The net force on the satellite is directed outward, away from the Earth.

15. Power is:

a. the same as energy.

b. the same as work.

c. the rate at which a force is applied.

d. the rate at which work is done.

16. What is the purpose of airbags in modern cars?

a. They alert the police that a collision happened.

b. They decrease the time of impact in a collision.

c. They protect the car from being damaged during a collision.

d. They decrease the force of impact on the driver and the passengers during the collision.

17. Two marbles are released to roll down two frictionless ramps. One marble rolls down a short, steep ramp and the other marble rolls down a long, flat ramp. If they are released from the same heights, how will the speeds at the bottom of the ramps compare?

a. The marble rolling down the short, steep ramp will have the greatest speed.

b. The marble rolling down the long, flat ramp will have the greatest speed.

c. They will have the same speed at the bottom of the ramps.

d. There is not enough information to tell.

18. Consider a basketball. In which situation will the basketball have the greatest buoyant force?

a. When the basketball is floating on a lake.

b. When the basketball is held under the surface of a pool.

c. When the basketball is placed on the ground.

d. When the basketball is thrown high into the air.

19. A 3 kg cart moving with a speed of 4 m/s collides with a 1 kg cart at rest. If the carts stick together after the collision, with what speed will they move after the collision?

a. 3 m/s

b. 4 m/s

c. 2 m/s

d. 1 m/s

20. A 50 kg man is stepping to the right out of a 20 kg boat that has not yet been tied to the dock. He is thinking he will step onto the dock. What is most likely to happen?

a. The man will move a small distance to the right and the boat will move a larger distance to the left.

b. The man will move to the right while the boat will stay in place.

c. The boat will move to the left while the man will stay in place.

d. The boat will move the same distance to the left as the man will move to the right.

e. The boat will move a small distance to the left and the man will move a larger distance to the right.

21 During which phase change is heat absorbed?

a. Condensation

b. Evaporation

c. Freezing

d. Conduction

e. Convection

22. Heat travels from the sun to the earth by:

a. Sublimation

b. Conduction

c. Convection

d. Radiation

e. Deposition

23 Why does a piece of metal generally feel cooler to the touch than a piece of wood?

a. The atoms in the wood vibrate faster than the atoms in the metal.

b. Wood, in general, is not a good insulator.

c. Metals, in general, are good heat conductors.

d. Metals, in general, have higher heat capacities than wood.

e. Metals are just colder than wood when left in the same environment.

24. When a comb is charged negatively by running it through your hair, the hair is

a. neutral.

b. charged negatively, too.

c. charged positively.

d. grounded.

25. When we say an appliance uses up energy, which of the following actually happens?

a. Electrons are removed from the circuit and placed elsewhere.

b. Kinetic energy of the electrons is converted to heat and other forms of energy.

c. Electric charges are used and will disappear as a result.

d. The voltage of the outlet is lowered.

e. Electric current is disappearing in the circuit.

26. Consider a 50W light bulb and a 100W light bulb connected to a household outlet. Which of the following statements is true?

a. The 50W light bulb has more current and less resistance.

b. The 100W light bulb has more current and less resistance.

c. The 50W light bulb has more current and higher resistance.

d. The 100W light bulb has more current and higher resistance.

27. What is the basic purpose of a generator?

a. To convert electrical energy to mechanical energy.

b. To convert electrical energy to thermal energy.

c. To convert thermal energy to mechanical energy.

d. To convert mechanical energy to electrical energy.

28. When a boat is floating on a lake, the buoyant force on the boat is equal to:

a. The weight of the boat.

b. The volume of the boat below the surface of the lake.

c. The volume of the boat above the surface.

d. The mass of the boat.

29. Compared to the amount of current in a wire connected to a light bulb, the amount of current in the light bulb is:

a. greater

b. smaller

c. the same

d. sometimes less and sometimes more

30. The purpose of a fuse or a circuit breaker is:

a. to limit the amount of current in a circuit.

b. to increase the amount of current in a circuit.

c. to limit the amount of voltage in a circuit.

d. to measure the amount of current and voltage in a circuit.

Dot Image
Tutorials for this Question

PHY102 module 4 exam 1

Tutorial # 00589122
Posted On: 07/24/2018 03:45 AM
Feedback Score: 100% (by 1 users)
Purchased By: 3
Yourexpert
Posted By:
Questions:
8424
Tutorials:
8763
Feedback Score:
Report this Tutorial as Inappropriate
Tutorial Preview
The solution of PHY102 module 4 exam 1...
Attachments
PHY102_module_4_exam_1.docx (19.78 KB)
Recent Feedback
Rated By Feedback Comments Rated On
Satisfied with the services provided 11/10/2020

Great! We have found the solution of this question!

Related Questions
PHY102 Electricity and Magnetism Exercises week 4
PHY-102: Electricity and Magnetism ExercisesComplete the following exercises.1. Why are good conductors of heat also good conductors of electricity?2. What is the difference between a good conductor a …
PHY102 Fluid and Thermal Physics Exercises week 3
PHY-102: Fluid and Thermal Physics ExercisesComplete the following exercises.1. Rank the following in terms of increasing density:A. A100 g object with a volume of 25 cubic centimetersB. A 200 g objec …
PHY102 Energy and Circular Motion Exercises week 2
Details:Complete the Energy and Circular Motion Exercises.GCU style is not required, but solid academic writing is expected.You are not required to submit this assignment to Turnitin.PHY-102: Energy a …
PHY102 Motion Exercises week 1
PHY-102: Motion ExercisesComplete the following exercises.1. Jane is collecting data for a ball rolling down a hill. She measures out a set of different distances and then proceeds to use a stopwatch …
Embry PHYS102 All Discussions
Embry PHYS102 Module 1 Discussion Module 1 Discussion Question 6262 unread replies.7474 replies. Based on the concepts of physics, why is jumping off the seat of a chair and landing on the floor …
Embry PHYS102 Module 9 Discussion
Module 9 Discussion: Question3636 unread replies.6262 replies.Why do metals exhibit the photoelectric effect quite easily? …
Embry PHYS102 Module 7 Discussion
Module 7 Discussion Question3838 unread replies.8282 replies.If the electric utility company where you live suddenly changed the frequency of the alternating current to 20 Hz, what problems might this …
Embry PHYS102 Module 6 Discussion
Module 6 Discussion Question4646 unread replies.100100 replies.In the past, ships often carried small cannons that were fired when approaching the shore in dense fog. The purpose of firing the cannon …
Embry PHYS102 Module 5 Discussion
Module 5 Discussion Question1111 unread replies.9393 replies.Air is allowed to escape from an inflated tire. Is the temperature of the escaping air higher than, lower than, or equal to the temperature …
Embry PHYS102 Module 4 Discussion
Module 4 Discussion Question9090 unread replies.9595 replies.A ship on a large river approaches a bridge. The captain notices that the ship is 1 foot too tall to pass under the bridge. A crew member s …
Recent Questions
Multidimensional care strategies - Choose Pulmonary Tuberculosis
Multidimensional care strategies Choose Pulmonary Tuberculosis (TB) of the infectious respiratory disorders from this module to discuss the multidimensional care strategies for this disorder. List …
Appraise effective leadership strategies that you can implement in health care
Columbia Southern University Healthcare Reflection Paper Appraise effective leadership strategies that you can implement in health care delivery. Apply methods of managing potential conflict in …
Week 2 Discussion: Organizational Structure, Power, and Applicable
Ashford University Public Administration Case Discussion Questions Week 2 Discussion: Organizational Structure, Power, and Applicable Theories Organization: Calhoun State Prison, Nursing Department …
HIMA240 Week 5 Prospective Payment Systems
HIMA 240 Week 5 Prospective Payment Systems Questions 240-This week you will, compare and contrast prospective payment systems with non-prospective payment systems. Explain the classification syste …
SNHU HCM325 Health & Medical Healthcare Marketing Proposal
HCM 325 SNHU Health & Medical Healthcare Marketing Proposal Journal This journal is your opportunity to conduct some preliminary research on a final project topic: an organization and a specifi …
Grantham ACC220 Complete Course Latest 2022 November (Full)
ACC220 Financial Accounting Week 1 Discussion Accrual vs. Cash For your follow up post...review the responses provided by your peers. Engage in conversation, or even civil debate, as you dis …
Grantham ACC220 Assignments Latest 2022 November (Full)
ACC220 Financial Accounting Week 1 Assignment Four Financial Statements For this week, write 750 words identifying four of the financial statements a for-profit organization will compile. De …
Grantham ACC220 Week 7 Assignment Latest 2022 November
ACC220 Financial Accounting Week 7 Assignment In the Cases & Projects section at the back of Chapter 14 in your textbook, find and complete problem “CP 14-4 Present values.” Be …
Grantham ACC220 Week 5 Assignment Latest 2022 November
ACC220 Financial Accounting Week 5 Assignment In the Cases & Projects section at the back of Chapter 8 in your textbook, find and complete the following problems: ·  &nb …
Grantham ACC220 Week 4 Assignment Latest 2022 November
ACC220 Financial Accounting Week 4 Assignment Assume that you recently accepted an accounting position with Target Corporation. As one of your first duties, you have been assigned the responsib …