U4 Videos FP 5.1.1

What is the correct equation for work done on an object?

• W = Fd sinθ

• W = Fd cosθ

• W = F/d cosθ

• W = F + d + cosθ

If an object is held stationary, what is the work done on the object?

• Positive

• Negative

• Zero

• Depends on the force applied

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When lowering a book, if the applied force is upwards and the displacement is downwards, what type of work is done by the applied force?

• Positive work

• Negative work

• Zero work

• Work cannot be determined

Work is a scalar quantity. Which of the following statements is true about scalar quantities?

• They always have a positive value.

• They have both magnitude and direction.

• They only have magnitude and can be negative.

• They only have direction.