Work, Energy and Power Quiz

According to Newton's Law of Inertia, objects in motion tend to ________.

• accelerate

• change direction

• come to rest

• stay in motion

What is the key word used across the three laws of motion to indicate a force?

• motion

• work

• displacement

• action

When is work considered to be done on an object?

• All of the above

• When the object is displaced

• When a force is applied to the object

• When the object changes its state of motion

Which of the following is an example of work being done?

• Pushing down on a stationary stone cube

• Pushing a box across a floor

• Lifting and carrying a box

• None of the above

What are the conditions for work to be done?

• A force must be applied to the object

• The object must be displaced in the same direction as the force

• Both A and B

• Neither A nor B

Which of the following is an example of negative work?

• Lifting a box

• Ball falling down

• Car braking

• Water turbine spinning

What is the equation to calculate work when force and displacement are in the same direction?

What is the equation to calculate work done on gases?

What is the product of force and displacement called?

• Energy

• Power

• Work

• Momentum

What is the work done on an object when the applied force is zero?

• Zero

• Positive

• Negative

• Cannot be determined