Laws Of Motion Quiz
Quiz yourself on how well you understand Newton's Laws of Motion
- 1.
How long will an object remain at rest, according to Newton's First Law of Motion?
- A.
It can't rest.
- B.
Until noon.
- C.
Until an unbalanced force occurs.
- D.
As long as there are unbalanced forces acting on it.
Correct Answer
C. Until an unbalanced force occurs.Explanation
Motion requires an unbalanced force. If an object isn't moving, the forces acting on it are balanced. Once the force is unbalanced, motion will occur.Rate this question:
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- 2.
What is inertia?
- A.
The tendency of an object to continue doing what it is currently doing.
- B.
The opposing force of gravity.
- C.
Another name for unbalanced forces.
- D.
The mass of an object.
Correct Answer
A. The tendency of an object to continue doing what it is currently doing.Explanation
Newton's first law, the Law of Inertia, states that an object at rest will remain at rest, and an object in motion will remain in motion, unless a force is applied to it.Rate this question:
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- 3.
Which of Newton's Laws describes the amount of force applied to accelerate an object's mass?
- A.
Newton's First Law
- B.
Newton's Second Law
- C.
Newton's Third Law
- D.
Newton's Fourth Law
Correct Answer
B. Newton's Second LawExplanation
Newton's Second Law is often refered to as a mathematical equation: F=MA (Force = mass X acceleration.Rate this question:
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- 4.
For every ________ there is an equal and opposite _____________.
- A.
Reaction, action
- B.
Action, action
- C.
Reaction, reaction
- D.
Action, reaction
Correct Answer
D. Action, reactionExplanation
This is Newton's Third Law of Motion.Rate this question:
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- 5.
The amount of force needed to move an object is measured in...
- A.
Newtons
- B.
Kilometers
- C.
Seconds
- D.
Grams
Correct Answer
A. NewtonsExplanation
In honor of his studies, the measurement of force required to make motion is named after Isaac Newton.Rate this question:
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- 6.
Gravity and magnetism are examples of what kind of forces?
- A.
Frictional
- B.
Non-contact
- C.
Contact
- D.
Momentum
Correct Answer
B. Non-contactExplanation
Because there are not two objects making contact, or touching each other, in order to make motion these are non-contact forces.Rate this question:
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- 7.
A person is measured on the moon, and on Earth. Which statement would be true?
- A.
The person's mass on Earth would be double on the moon.
- B.
The person's mass on the the moon, would be twice that on Earth.
- C.
The person would have mass on Earth but not on the moon.
- D.
The mass would be the same on the moon as it is on Earth.
Correct Answer
D. The mass would be the same on the moon as it is on Earth.Explanation
Mass is the measurement of substance in an object. Since the person would contain the same amount of substance regardless of where he/she might be, it would be the same wherever it was measured.Rate this question:
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- 8.
A person is measured on the moon and on Earth. Which statement would be true?
- A.
The mass would be the same on the moon as it is on Earth, but the weight would be more on the moon than it is on Earth.
- B.
The weight would be the same on the moon as it is on Earth, and the mass would be more on the moon than it is on Earth.
- C.
The mass and weight would be the same on the moon as it is on Earth, because mass is another name for weight.
- D.
The mass would be the same on the moon as it is on Earth, but the weight would be more on Earth than it is on the moon.
Correct Answer
D. The mass would be the same on the moon as it is on Earth, but the weight would be more on Earth than it is on the moon.Explanation
Weight is directly proportional to the amount of gravity. Since Earth has more gravity than the moon, a person would weigh more on Earth.Rate this question:
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- 9.
The amount of force that gravity has on an object is affected by what factors?
- A.
The object's mass.
- B.
The object's distance from the gravitational force.
- C.
The object's height.
- D.
Both A and B.
Correct Answer
D. Both A and B.Explanation
The closer an object is, the more force gravity will have on it. It will also have more pull on items with more mass.Rate this question:
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- 10.
Why is it harder to push a van filled with bowling balls than it is to push van filled with basketballs?
- A.
The mass of the car is greater than the mass of the basketball.
- B.
The mass of the bowling balls is greater than the mass of the basketballs.
- C.
The van with the basketballs is bigger than the van with the bowling balls.
- D.
It should be equally as hard to push the two vans.
Correct Answer
B. The mass of the bowling balls is greater than the mass of the basketballs.Explanation
It's more difficult to move objects of more mass. Since the vans are the same mass, the difference in mass has to be directly relative to the balls. Bowling balls have a denser core than basketballs which are filled with air.Rate this question:
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- 11.
How could you tell if a moving object is receiving an unbalanced force?
- A.
It might speed up.
- B.
It might slow down.
- C.
It might change direction.
- D.
It might do any of the three things mentioned above.
Correct Answer
D. It might do any of the three things mentioned above.Explanation
Unbalanced forces change an object's acceleration or direction.Rate this question:
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- 12.
A plane flew from NY to California in 4 hours. It took 4 1/2 hours to return to NY. Which of the following is true:
- A.
The plane flew faster to NY than it flew to California.
- B.
The plane flew faster to California than it flew to NY.
- C.
The plane flew the same speed in both directions.
- D.
The plane had fewer passengers going to NY than it did to California.
Correct Answer
B. The plane flew faster to California than it flew to NY.Explanation
The distance is the same for both flights. We have no information regarding tha passengers, so we must conclude that the speed of the plane was the variable.Rate this question:
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- 13.
Why is it difficult to scoot a bed from one end of the room to the other?
- A.
Momentum
- B.
Gravity
- C.
Friction
- D.
Deceleration
Correct Answer
C. FrictionExplanation
Friction opposes motion, causing it to slow down or stop. Friction wants to slow down or stop any motion.Rate this question:
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- 14.
Which of Newton's Laws is demonstrated by a ball rolling to a wall then stopping?
- A.
Newton's First Law
- B.
Newton's Second Law
- C.
Newton's Third Law
- D.
Newton's Law of Acceleration
Correct Answer
A. Newton's First LawExplanation
Newton's First Law states that an object in motion (like a ball) will remain in motion (rolling) unless an outside force acts on it (a wall).Rate this question:
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- 15.
Why do you lean towards the left when a car turns right?
- A.
Because of inertia
- B.
Because of gravity
- C.
Because of buoyancy
- D.
Because of velocity
Correct Answer
A. Because of inertiaExplanation
Inertia is the resistance of a change in motion. Your body wanted to continue going straight eventhough the car changed direction. You appear to be leaning in the opposite directions.Rate this question:
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- 16.
How can you tell if an object is in motion?
- A.
The object will look different.
- B.
I'll be able to see the forces.
- C.
It will remain in the same position.
- D.
Its position will change in relation to other objects.
Correct Answer
D. Its position will change in relation to other objects.Explanation
If you look out the window of a moving car, the houses will appear to move even though they are staying in the same place. Your car is changing its relative position to the house.Rate this question:
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- 17.
What is "position"?
- A.
A type of contact force.
- B.
A specific location
- C.
A type of motion
- D.
Another name for friction
Correct Answer
B. A specific locationExplanation
A location of an object is its position.Rate this question:
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- 18.
Blue bumper car, traveling east with a force of 100 N, runs into a yellow bumper car traveling west with a force of 300 N. Because the net force will be -200 N. one of the cars will be pushed backwards. Which one?
Correct Answer
The blue bumper car, the blue one, blue, blue bumper car, blue car, Blue bumperExplanation
The blue bumper car will be pushed backwards because it has a smaller force (100 N) compared to the yellow bumper car (300 N). The net force is the difference between the two forces, which in this case is -200 N. Since the net force is in the opposite direction of the blue bumper car's initial motion, it will be pushed backwards.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Apr 03, 2018Quiz Created by
Doreen Collin
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