PRACTICE TEST: Work, Power, Energy, & Simple Machines (HPS)

What is the unit used to measure Power?

• Joule
• Watt
• Newton
• Pascal

Force X Distance = _______?

• Work
• Power
• Energy
• Force

The ability to do work or cause change:

• work

• energy

• momentum

• power

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Energy in the form of motion.

• mechanical energy

• potential energy

• kinetic energy

• momentum

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Stored energy in the form of position or condition.

• potential energy

• kinetic energy

• momentum

• mechanical energy

Tags

NGSS.MS-PS3-2

What is needed to calculate work? Choose all that apply.

• force

• distance

• time

• mass

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?
 $Work=\ Force\ X\ Dis\tan ce$  

• 12 J

• 8 J

• 20 J

• 5 J

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

Work= Force X Distance

• 200 J

• 80 J

• 5 J

• 2000 J

What is needed calculate power? Choose all that apply.

• work

• time

• mass

• distance

Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?

 $Power=\ Work\div Time$   $Work=\ Force\ X\ Dis\tan ce$  

• 100 watts

• 400 watts

• 104 watts

• 50 watts