Physics of Work Quiz

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What is the equation for work done by a constant force?

$W = Fd \cos(\theta)$ (correct)

$W = Fd$

$W = Fd \sin(\theta)$

$W = F + d$

When does a force do negative work?

When it is applied horizontally

When it has a component opposite to the direction of the displacement (correct)

When it has the same direction as the displacement

When it is applied vertically

What is the work done by the gravitational force when a ball is thrown upwards?

Positive and equal to the weight multiplied by the displacement in the upwards direction

Zero

Negative and equal to the weight of the ball

Negative and equal to the weight multiplied by the displacement in the upwards direction (correct)

What happens to the work done by the gravitational force on a ball as it falls towards the ground?

It is positive and equal to the weight of the ball multiplied by the distance to the ground Signup and view all the answers

In the work equation $W = Fd \cos(\theta)$, what does $\theta$ represent?

The angle between the force and the displacement vectors Signup and view all the answers

What is the work done by a force when it has a component in the direction of the displacement?

Positive Signup and view all the answers

In its simplest form, work for a constant force aligned with the direction of motion equals the product of:

Force strength and distance traveled Signup and view all the answers

When a force has a component opposite to the direction of the displacement, the work done is:

Negative Signup and view all the answers

If a ball is thrown upwards, the work done by the gravitational force is:

Negative Signup and view all the answers

The work done by the gravitational force on a ball as it falls is equal to:

The weight of the ball multiplied by the distance to the ground Signup and view all the answers

When does a force do negative work?

When it has a component opposite to the direction of the displacement at the point of application Signup and view all the answers

What is the work done by the gravitational force when a ball is held above the ground and then dropped?

Positive, equal to the weight of the ball multiplied by the distance to the ground Signup and view all the answers

In the work equation $W = Fd \cos(\theta)$, what does $\theta$ represent?

The angle between the force and the displacement vectors Signup and view all the answers

What happens to the work done by the gravitational force on a ball as it falls towards the ground?

It is positive Signup and view all the answers

For a constant force aligned with the direction of motion, the work equals:

The product of the force strength and the distance traveled Signup and view all the answers

Physics of Work Quiz

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Questions and Answers

What is the equation for work done by a constant force?

When does a force do negative work?

What is the work done by the gravitational force when a ball is thrown upwards?

What happens to the work done by the gravitational force on a ball as it falls towards the ground?

In the work equation $W = Fd \cos(\theta)$, what does $\theta$ represent?

What is the work done by a force when it has a component in the direction of the displacement?

In its simplest form, work for a constant force aligned with the direction of motion equals the product of:

When a force has a component opposite to the direction of the displacement, the work done is:

If a ball is thrown upwards, the work done by the gravitational force is:

The work done by the gravitational force on a ball as it falls is equal to:

When does a force do negative work?

What is the work done by the gravitational force when a ball is held above the ground and then dropped?

In the work equation $W = Fd \cos(\theta)$, what does $\theta$ represent?

What happens to the work done by the gravitational force on a ball as it falls towards the ground?

For a constant force aligned with the direction of motion, the work equals:

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