Energy, Work, and Power
Authored by Lisa Thompson
Science
9th Grade
NGSS covered
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A weight-lifter raises a 2000N weight through a vertical height of 2.0m in 0.80s. What useful power does he develop in doing this?
800 W
700W
4000W
5000W
Tags
NGSS.MS-PS3-5
NGSS.MS-PS3-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
A
B
C
D
Tags
NGSS.MS-PS3-2
NGSS.MS-PS2-4
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Groot rescues Rocket from the bottom of a deep pit. Groot expends 1000 J of energy lifting Rocket who has a mass of 50 kg out of the pit. How deep is the pit?
0.5 m
2 m
4 m
10 m
Tags
NGSS.MS-PS2-4
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How do you calculate power?
P = W/t
P = E/t
P = w * t
P = bbq/chicken
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The SI unit of work is?
Joules
Watts
Newtons
meters
Tags
NGSS.HS-PS2-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gravitational potential energy depends on the ________ and ________ of the object.
Height and mass
Friction and movement
Mass and Movement
Height and Friction
Tags
NGSS.MS-PS3-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why does the total amount of mechanical energy stay constant in a system?
energy is not created or destroyed
energy leaves
energy enters
energy is not converted from one form into another
Tags
NGSS.MS-PS3-5
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