Newton's Law

There is a skateboard rolling and then Billy steps on it and it stops. What Law of motion is this?

• 3rd

• 2nd

• 1st

The reason a ball bounces up when it hits the ground:

• The ball and ground repel each other.

• The ball exerts a force on the ground, and the ground exerts a force on the ball.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Watch as I propel the washers across the desk. Observe what happens as I use different amounts of force.

• Newton's 1st Law, inertia

• Newton's 2nd Law, Force = m x a

• Newton's 3rd Law, action/reaction

Answer explanation

The more force I used, the greater the acceleration of the washers, and the further they traveld.

Tags

NGSS.MS-PS2-2

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

• Balanced

• Magnetic

• Spring

• Unbalanced

Tags

NGSS.3-PS2-1

What Unit do we Measure Force in?

• Newtons

• Joules

• Force

• Kilograms

What is Newton's third law?

• An object in motion tends to stay in motion while an object at rest tends to stay at rest unless acted on by some force

• Acceleration means a change in speed or direction of something

• For every action, there is an equal and opposite reaction

• Force equals mass times acceleration

Tags

NGSS.MS-PS2-1

What does Newton's first law state?

• Acceleration means a change in speed or direction of something

• An object in motion tends to stay in motion while an object at rest tends to stay at rest unless acted on by some force

• Force equals mass times acceleration

• For every action, there is an equal and opposite reaction

What is Newton's second law?

• For every action, there is an equal and opposite reaction

• Force equals mass times acceleration

• An object in motion tends to stay in motion while an object at rest tends to stay at rest unless acted on by some force

• Acceleration means a change in speed or direction of something

What is an example of Newton's first law?

• Trying to push a couch that's sitting on a fluffy rug is harder than pushing that same couch on a smooth floor

• Jumping on a diving board

• A pair of snow skis aren't going to go anywhere without a skier in them forcing them to move

• A ball rolling along a level surface will eventually slow down and stop due to friction

What is the equation for Newton's second law?

• Acceleration means a change in speed or direction of something

• Force equals mass times acceleration

• For every action, there is an equal and opposite reaction

• An object in motion tends to stay in motion while an object at rest tends to stay at rest unless acted on by some force