Mechanical Energy and Simple Machines

What is a fulcrum?

• A force that makes an object move

• The pivot point allowing a lever to move

• Measurement of weight

• . A push or a pull

What is energy?

• The pivot point allowing a lever to move

• A push or a pull

• Measurement of weight

• The ability to move or allow something to move

What is work?

• The pivot point allowing a lever to move

• A push or a pull

• A force that makes an object move

• Measurement of weight

Tags

NGSS.MS-PS3-5

What is force?

• A force that makes an object move

• A push or a pull

• The ability to move or allow something to move

• The pivot point allowing a lever to move

What are Newtons?

• The ability to move or allow something to move

• A push or a pull

• The pivot point allowing a lever to move

• Measurement of weight

What is an example of potential energy?

• A book sitting on a shelf

• A car moving down the highway

• A person playing basketball

• Both B and C

Tags

NGSS.MS-PS3-2

What is an example of kinetic energy?

• Water moving down a waterfall

• A car parked in a driveway

• A baby waving its hands

• Both A and C

Tags

NGSS.4-PS3-1

What does a spring scale measure?

• Potential Energy

• Newtons

• Joules

• Centimeters

LeBron James is doing an experiment to see what brand of basketball bounces the highest. He buys three different brands of basketballs and tests them by dropping them and counting how many times they bounce before they stop bouncing.

What is the independent variable?

• The number of times the basketballs bounce

• The different brands of basketballs

• The court the basketballs are bounced on

• The height the basketballs are being dropped from

LeBron James is doing an experiment to see what brand of basketball bounces the highest. He buys three different brands of basketballs and tests them by dropping them and counting how many times they bounce before they stop bouncing.

What is the dependent variable?

• The height the basketballs are being dropped from

• The court the basketballs are bounced on

• The number of times the basketballs bounce

• The brands of basketballs