Day 2 Review Unit (4-6)

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

Work is done when a weightlifter holds a barbell still above his head.

• True
• False

If you increase your work and decrease your time, you will have

• more power

• less power

• same amount of power

• power rating can not be determined

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.

• Person A

• Person B

Force is a _____ or _______

• simple    complex
• push     pull
• up      down
• in      out

Tags

NGSS.MS-PS2-1

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

• 272 m
• 17 m
• 4.05 m
• 272 cm 

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

Which of the following is NOT an insulator?

• Wool
• Plastic
• Copper
• Styrofoam

Heat transfers from ______ objects to cold objects. 

• Cold
• Hot
• Convection
• Radiation 

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The following are conductors EXCEPT-

• 
• 
• 
•