Energy, work, power, machines

What object transforms electrical energy to light energy?

• a car

• a battery

• a light bulb

• a stove

Energy stored in a leaf would be considered to be

• electrical

• chemical

• thermal

• mechanical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

A cart that is moving across a parking lot would have...

• potential energy

• kinetic energy

• chemical energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

At what point would the coaster have the most potential energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-2

Where would the cart have the most kinetic energy

• 1

• 2

• 4

• 6

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-1

What type of machine is shown in the picture?

• 1st class lever

• 2nd class lever

• 3rd class lever

• inclined plane

Chat class lever is shown?

• 1st

• 2nd

• 3rd

• 4th

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

What type of simple machine is a door knob?

• pulley

• wheel and axle

• screw

• Rube Goldberg

If a force of 5 N pushes a box 2 meers, what is the work done?

• 3 J

• 7 J

• 10 J

What work done is done on a stationary wall by a person pushing with a force of 500 N?

• 500

• 0

• cannot be determined