Work and Power Quiz - 8

What is needed to calculate work?

• 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?

• 12 J

• 8 J

• 20 J

• 5 J

Tags

NGSS.MS-PS3-2

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?

• 200 J

• 80 J

• 5 J

• 2000 J

Tags

NGSS.MS-PS3-5

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

• 18 m

• 4 m

• 10 m

• 6 m

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

What can be used to calculate power?

• work

• time

• energy

• distance

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

• 100 watts

• 400 watts

• 104 watts

• 50 watts

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

The SI Unit for Work

• Newton (N)
• Joule (J)
• Second (s)
• Watt (W)

The SI Unit for Power

• Newton (N)
• Joule (J)
• Second (s)
• Watt (W)

F=200 N
d=50 m
w=??

• 4 J
• 0.25 J
• 250 J
• 10,000 J

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Tags

NGSS.MS-PS2-2