Collisions in Two Dimensions

The Law of Conservation of Momentum states that the amount of momentum in a system is ___________________ before and after a collision.

• greater

• decreased

• the same

• unknown

Tags

NGSS.HS-PS2-2

Jorge noticed a collision outside the coffee shop where two cars collided and stuck together.  What type of collision did he observe?

• Elastic

• Inelastic

• Completely inelastic

• none

While playing pool, Emma notices that the pool balls bounce apart.  What type of collision is this?

• Elastic

• Inelastic

• Explosive

• Force

Tags

NGSS.HS-PS2-2

A mom is rolling a ball to her child in the park. When the child rolled the ball back, the ball changed direction and didn’t make it to the mom. When they looked to see what caused the ball to go a different way, they saw that the ball hit a toy someone must have left behind. Which of these caused the ball to change direction?

• A change in speed.

• A change in mass.

• A change in force.

• A change in gravity.

Tags

NGSS.HS-PS2-1

In science, when one object runs into another we call it a _____________.

• crash

• hit

• strike

• collision

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

What is transferred at the instant the bat hits the ball?

• matter

• energy

• sound

• light

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

What do we call the section of a car that absorbs energy in a collision?

• windshield

• bumper

• hood

• crumple zone

Tags

NGSS.HS-PS2-3

What happens when Dr. Jeff's mom collides with Izzy?

• nothing

• Dr. Jeff's mom flies back

• Izzy flies back

• they both fly back

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1

When a hockey puck hits a plexiglass barrier some of the energy is converted into what?

• sound and heat

• sound and matter

• matter and heat

• sound only

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Which of the following is true about what happens to energy when two balls collide?

• The total amount of energy between the two balls becomes zero.

• The total amount of energy between the two balls stays the same.

• The total amount of energy between the two balls increases.

• The total amount of energy between the two balls decreases.

Tags

NGSS.HS-PS3-1