Laws of Motion

Question 1

Why is it harder to push bowling ball than it is to push a basketball?

Accepted Answer

Bowling balls have more mass than basketballs.

Question 2

A person is measured on the moon, and on Earth. Which statement would be true?

Accepted Answer

The mass would be the same on the moon as it is on Earth.

Question 3

The amount of force that gravity has on an object is affected by what factors?

Accepted Answer

Both A and B are correct.

Question 4

If an object is moving, then the magnitude of its ____ cannot be zero

Accepted Answer

Velocity

Question 5

Why is it difficult to scoot a box from one end of the room to the other?

Accepted Answer

Because of Friction

Question 6

How can you tell if an object is in motion?

Accepted Answer

It will change position relative to other objects.

Question 7

What is "position"?

Accepted Answer

A location

Question 8

A car at rest accelerates in a straight line at 3 m/s². What will be its speed after 2 seconds?

Accepted Answer

6 m/s

Question 9

Why do you lean towards the left when a car turns right?

Accepted Answer

Because of Inertia

Question 10

How could you tell if a moving object is receiving an unbalanced force?

Accepted Answer

Any of the three above is correct.

Question 11

Which of Newton's Laws is demonstrated by a ball rolling to a wall then stopping?

Accepted Answer

Newton's First Law of Motion

Question 12

The amount of force needed to move an object is measured in..

Accepted Answer

Newtons

Question 13

Gravity and magnetism are examples of what kind of forces?

Accepted Answer

Field

Question 14

A body in free fall in a vacuum

Accepted Answer

has the same acceleration during each second of its fall.

Question 15

Which of Newton's Laws describes the amount of force applied to accelerate an object's mass?

Accepted Answer

Newton's Second Law of Motion

Question 16

How long will an object remain at rest, according to Newton's First Law of Motion?

Accepted Answer

Until acted on by an unbalanced force

Question 17

Why might A plane flying from NY to California in 4 hours take 4 1/2 hours to return to NY.

Accepted Answer

The plane flew faster to NY than it flew to California, The plane had fewer passengers to NY than to California.

Question 18

What is Inertia?

Accepted Answer

The tendency of an object to do what it is doing?

Question 19

For every ________ there is an equal and opposite _____________.

Accepted Answer

Action, Reaction

Question 20

To accelerate a 6 kg mass at 2 m/s² requires a net force of ____

Accepted Answer

12 N

Question 21

'A' is fired at an angle of 50° ; 'B' is fired with the same speed at 40°, which is true?

Accepted Answer

'A' will reach a greater height with the same range as 'B'.

Questions 21