Physics - Work & Energy
Authored by Jeff Laufer
Physics
9th Grade
NGSS covered
Used 69+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A pendulum bob swings from potential C to D as indicated in the diagram. There is no friction or air resistance. Which of the following is not true?
Kinetic Energy decreases from C to D
Potential Energy decreases from C to D
The Total Energy stays constant from C to D.
The bob is fastest at point C.
Tags
NGSS.HS-PS3-1
NGSS.HS-PS3-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A skier slides down an incline as shown. The work done by friction is:
Positive
Negative
Zero
All of the above
Tags
NGSS.HS-PS2-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A skier slides down an incline as shown. The work done by gravity is:
Positive
Negative
Zero
All of the above ¯\_(ツ)_/¯
Tags
NGSS.HS-PS2-1
NGSS.HS-PS2-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A skier slides down an incline as shown. The work done by the normal force is:
Positive
Negative
Zero
Olive the above
Tags
NGSS.HS-PS2-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A skier slides down an incline as shown. What happens as he slides down the incline?
Kinetic Energy is converted into Potential Energy
Kinetic Energy is converted into Work
Work is converted into Potential Energy
Potential Energy is converted into Kinetic Energy
Tags
NGSS.HS-PS3-2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The 70 kg skier starts from a height of 20 m. If there is no friction, what is his velocity at the bottom of the incline?
37 m/s
20 m/s
14 m/s
10 m/s
Tags
NGSS.HS-PS2-1
NGSS.HS-PS3-1
NGSS.HS-PS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A person pushes a box as shown. The vector arrows are drawn to scale. Is the net work positive or negative?
Positive
Negative
Zero
Impossible to tell
Tags
NGSS.HS-PS2-1
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