AP Physics

What's happening in this FBD?

• Forward acceleration

• Braking

• at rest

• constant velocity

Tags

NGSS.MS-PS2-2

Is it possible for the normal force to be equal to the gravitational force?

• Yes. If the surface is horizontal.

• Yes. If the surface is vertical

• No. FN will always be less than Fg

• No. Fg will be less than FN.

Tags

NGSS.MS-PS2-4

Is it possible for the normal force to be zero?

• Yes. If the surface is horizontal.

• Yes. If the surface is vertical

• No. FN will always be less than Fg

• No. Fg will be less than FN.

Tags

NGSS.HS-PS2-1

Forces cause acceleration.

• True. Every acceleration requires a force.

• True. Every force causes acceleration.

• False. Acceleration can occur when there is no net force

• False. Only net forces cause acceleration.

Tags

NGSS.MS-PS2-2

A tennis ball is thrown upward by a student so that it leaves their hand at 5.29 m/s. After it leaves their hand, what keeps it moving up?

• The initial force of their hand overcame gravity

• Nothing. The ball simply has inertia.

• gravity keeps it moving up.

• It is not actually moving up. That is a construct.

Why is this funny?

• Because gravity.

• It's not the impact velocity, it's the stopping acceleration that causes destruction

• because most people don't understand it

• the greater your mass is the harder you hit

Tags

NGSS.HS-PS2-1

What does a flat horizontal line on a velocity time graph indicate?

• constant velocity

• at rest

• acceleration

Tags

NGSS.MS-PS3-1

What is happening B-C?

• the car is at rest

• the car is moving at a constant speed backward

• the car is moving at a constant speed forward

• the car is accelerating forward

Tags

NGSS.MS-PS2-2

What is happeningA-B?

• the car is at rest

• the car is moving at a constant speed backward

• the car is moving at a constant speed forward

• the car is accelerating forward

During what segment does the car have negative acceleration?

• A-B

• B-C

• C-D

• D-E

Tags

NGSS.MS-PS2-2