Lesson 5-2 - Collisions

_______ _______ is the result from the interaction of two objects colliding. When a baseball and bat collide, the _______ _______ sends the baseball traveling in the direction the bat is swung.

• Contact force

• Reaction force

Tags

NGSS.MS-PS2-1

When a roller coaster moves down an incline due to the force of gravity, this is an example of work.

• true

• false

Tags

NGSS.MS-PS3-5

_______ _______ is the force acting back on the object that started the push or pull. When the bat hits the baseball, the _______ _______ pushes back on the bat after impact with the baseball.

• Contact force

• Reaction force

Tags

NGSS.MS-PS2-1

Which is an example of kinetic energy?

• a train rolling down a track

• a rock at the top of a cliff

• a flashlight battery

• a parked car

Tags

NGSS.MS-PS3-1

Which is not an example of a collision causing energy transfer and change in motion?

​

• a bat strikes a baseball

• a catcher catches a baseball

• a baseball hits the ground

• a baseball flies through the air

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student wanted to find out how much kinetic energy would be needed to move a marble that was at rest. She set up the following investigation:

​

Which data should she collect?

• what the temperature is that day

• how fast the marble travels

• what colors the marbles contain

• how many boys and girls are helping

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-2

An example of potential energy is a roller coaster reaching its fastest speed as it reaches the bottom of a hill.

• true

• false

Tags

NGSS.MS-PS3-2

If the amount of kinetic energy an object has is increased, then the object will move faster.

• true

• false

Tags

NGSS.MS-PS3-1

Which describes a change that will likely occur in the collision below?

​

• Kinetic energy will be transferred from the nail to the hammer, causing the hammer to move.

• Potential energy will be transferred from the nail to the hammer, causing no change in motion.

• Kinetic energy will be transferred from the hammer to the nail, causing the nail to move.

• All of the kinetic energy will transform into light energy and no change in motion will occur.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-1

When an elevator is moving up in a building, there are unbalanced forces acting on it.

• true

• false

Tags

NGSS.MS-PS2-2