Work, Energy and Power

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

A 5000N block is lifted 10 m. How much work was done?

• 50000 J
• 5000 J
• 500 J
• 50 J

Tags

NGSS.HS-PS3-1

W=125 J
d=10 m
F=???

• 12.5 N
• 1250 N
• 0.08 N
• 135 N

Tags

NGSS.HS-PS2-1

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.HS-PS3-1

P=25 watts 
W=5000 Joules 
t=???

• 200 sec
• 0.0005 s
• 125000 s
• 125 s

Tags

NGSS.HS-PS3-1

What is work?

• the amount of energy 
• the transfer of force over a distance
• rate of work in a given time
• the change in distance in a given time

What is the equation for work?

• W = mass x acceleration

• W = force x distance

• W = force / distance

• W = speed / time