Collisions where objects BOUNCE apart are _____.

• inelastic collisions

• elastic collisions

• explosions

• none of these

Tags

NGSS.HS-PS2-2

Momentum before a collision = Momentum after a collision

according to the Law of ________.

• Conservation of Momentum

• Conservation of Energy

• Impulse

• Collisions

Tags

NGSS.HS-PS2-2

Two pool balls collide and then go separate directions is an example of a/an ________.

• inelastic collision

• elastic collision

• none of these

Tags

NGSS.HS-PS2-2

What kind of collision is this?

• inelastic collision

• elastic collision

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

For every action, there is an equal and opposite reaction is also known as____.

• Newton's 1st Law of Motion

• Newton's 3rd Law of Motion

• Newton's 2nd Law of Motion

• Law of Momentum

Which TWO variables determine the MOMENTUM for an object?

(Select all correct answers)

• time

• density

• velocity

• mass

Tags

NGSS.HS-PS2-2

 

An air bag increases _________, which in turn decreases _________.

• force / time

• time / force

• mass / weight

• acceleration / velocity

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Action: Your foot applies a downward force onto the floor.

According to Newton's 3rd Law, what is the reaction?

• Your foot pushes through the floor.

• The floor applies an equal and opposite force upward on your foot.

• Your foot bounces off of the floor.

• The floor collapses.

Tags

NGSS.MS-PS2-1

 

An insect applies 1.5 N of force to a windshield of a moving car. How much force does the windshield apply to the insect?

• 15,000 N

• 0.5 N

• 1.5 N

• Not enough information

Tags

NGSS.MS-PS2-1

 

If the two cars have an ELASTIC COLLISION, which direction (if any) will they move?

• The will BOUNCE OFF and move LEFT

• They will STICK TOGETHER and move LEFT

• They will BOUNCE OFF and move RIGHT

• They will STICK TOGETHER and move RIGHT

Tags

NGSS.HS-PS2-2