What is the angle theta used for in the work equation?
AP Physics 1: Work, Energy and Power Review

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Physics, Science
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11th Grade - University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To determine if the work is positive or negative
To find the magnitude of the force
To determine the direction of the force
To calculate the displacement
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about kinetic energy?
It is the energy associated with height
It is the energy stored in a spring
It is always positive because mass and velocity squared are positive
It can be negative if velocity is negative
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be identified before solving a problem involving gravitational potential energy?
The spring constant
The horizontal zero line
The angle of displacement
The mass of the object
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is mechanical energy conserved?
When there is no friction
When energy is converted to heat
When a force is applied
When the object is moving at constant speed
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is power defined in terms of work?
The amount of work done per unit force
The rate at which work is done
The work done per unit displacement
The total work done over time
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Hooke's law state about the force of a spring?
It is inversely proportional to the displacement
It is equal to the spring constant times the displacement
It is independent of the displacement
It is proportional to the square of the displacement
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the units of the spring constant in Hooke's law?
Watts per meter
Joules per meter
Meters per second
Newtons per meter
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