Science Unit 1 Lesson 3 October 28

Which of these is a Newton's Cradle?

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What happens when you lift one ball on a Newton’s cradle and let it go?

• All the balls stop moving.

• The ball on the opposite end swings out.

• All the balls move at the same time in the same direction.

A Newton's Cradle helps to illustrate what "law"?

• "The law of conservation of energy"

• "The law of kinetic and potential energy"

• "Newton's fifth law of slow energy"

What is the best meaning of energy transfer?

• the movement of energy from one object to another

• when two or more objects hit each other with a force

• when kinetic energy changes to stored energy

When you use the Newton's Cradle, you know that energy can't be lost. Where does the energy go?

• It moves to the other balls in an elastic collision.

• it moves to the other balls and then out into the air.

• It moves to the other balls in an inelastic collision.