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WorksheetsWork and Energy
Total questions: 25
Worksheet time: 12mins
What is the SI unit of work?
Newton
Watt
Joule
Pascal
Work is defined as the product of force and ____.
Time
Acceleration
Distance
Velocity
3. When is work done on an object?
When the object is at rest
When the object is in motion
When the net force on the object is zero
When the object is at the top of a hill
Which of the following is a unit of energy?**
Newton
Watt
Joule
Pascal
What is the kinetic energy of an object dependent on?**
Mass and velocity
Force and distance
Height and weight
Time and acceleration
In the absence of air resistance, what happens to the potential energy of an object as it falls freely toward the ground?**
Increases
Decreases
Remains constant
Becomes negative
The total energy of a closed system is always ____.**
Increasing
Decreasing
Conserved
Zero
Which form of energy is associated with the motion of atoms and molecules?**
a)
b) Potential energy
c)
d) T
Kinetic energy
Potential energy
Mechanical energy
Thermal energy
What is the gravitational potential energy of an object dependent on?**
Mass and acceleration due to gravity
Force and distance
Height and velocity
Time and weight
Which type of energy is stored in an object due to its position above the Earth's surface?**
Kinetic energy
Thermal energy
Gravitational potential energy
Chemical energy
What is the law of conservation of energy?**
Energy cannot be created or destroyed, only transformed.
Energy can be created but not destroyed.
Energy can be destroyed but not created.
Energy can only be created by living organisms.
What is the relationship between work and energy?**
Work is a form of energy.
Energy is a form of work.
Work and energy are unrelated.
Work is the absence of energy.
When does an object have the most potential energy in a roller coaster ride?**
At the bottom of a hill
At the top of a hill
In a loop
During a turn
14. What happens to the kinetic energy of an object if its mass doubles but its velocity remains constant?**
It doubles
It halves
It quadruples
It remains constant
What type of energy does a stretched rubber band have?**
Chemical energy
Kinetic energy
Elastic potential energy
Thermal energy
Which of the following is a non-renewable source of energy?**
Solar
Wind
Fossil fuels
Hydroelectric
What is the energy transformation in a car engine?**
Mechanical to electrical
Chemical to thermal
Nuclear to kinetic
Solar to potential
Which of the following is an example of renewable energy?**
Natural gas
Coal
Solar power
Nuclear power
What is the energy transformation in a solar panel?**
Thermal to electrical
Mechanical to electrical
Nuclear to thermal
Solar to kinetic
What is the relationship between power and work?**
Power is the rate of doing work.
Work is the rate of using power.
Power and work are unrelated.
Power is the absence of work.
What is the SI unit of power?**
Watt
Newton
Joule
Kilogram
How is power related to energy?**
Power is the energy stored in an object.
Energy is the ability to do power.
Power is the rate of using energy.
Energy and power are the same thing.
If the same amount of work is done in less time, how does power change?**
Power increases
Power decreases
Power remains constant
Power becomes zero
Which of the following is an example of mechanical energy?**
Light energy
Sound energy
Thermal energy
Kinetic energy
What is the energy transformation in a hydroelectric power plant?**
Thermal to electrical
Mechanical to electrical
Solar to potential
Chemical to thermal
