Law of Motion

Which of the blocks above has balanced forces acting on it?

• A

• B

• C

• D

While you’re ice-skating with your friends, you push off from one end of the rink and slide forward. Based on Newton’s first law of motion, what is true?

• You will continue to slide until a force makes you stop or change direction.

• The force of gravity will make you keep your velocity.

• You will not go far.

According to inertia, without the seatbelt the driver would...

• Stop with the car.

• Continue moving forward.

• Move backward.

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

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NGSS.MS-PS2-2

The force that prevents a ball rolling on the ground from continuing on it's path forever is...

• Friction

• Gravity

• Inertia

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

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NGSS.MS-PS2-2

What is the net force?

• 400 N Up

• 400 N Down

• - 400 N Down

• 800 N Down

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NGSS.MS-PS2-2

An object's tendency to resist (not) change its state of motion is called ____________.

• gravity

• force

• inertia

• friction

How does the water in the balloon show inertia after it is popped?

• At first, the water tries to stay in the same shape/location before gravity takes over.

• The water splashes down on the unexpecting kitten.

• The water accelerates towards the kitten.

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NGSS.3-PS2-1

NGSS.3-PS2-2

The skateboarder does NOT see the stick on the ground and is approaching FAST. Based on what you know about inertia, what do you think will happen next?

• The skateboarder will hit the stick and stop.

• The skateboarder will hit the stick and go flying forward but the skateboard will stop.

• The skateboarder will hit the stick and bounce backwards.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2