Work, KE and PE

Olivia's bus traveled along a flat horizontal road. The bus weighs 150kg. If it traveled 50m to the west after 30 seconds of travelling with 60N force, what is the Work done?

• 1500 J

• 3000 J

• 7500 J

• 9000 J

A 1kg cart moves away from the rest. What will be its Work done if it traveled 8m to the right, and the force applied to it is 30N east?

• 8 J

• 30 J

• 240 J

• 300 J

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

Which of the following is the best example of work being done.

• doing homework

• lifting a box

• pushing a stationary box

• holding a box

A 5000N block is lifted 10 m. How much work was done?

• 50000 J
• 5000 J
• 500 J
• 50 J

Force is a _____ or _______

• simple    complex
• push     pull
• up      down
• in      out

In which of these cases is work being done? 

• A student sleeps
• A student pushes a locked door that does not move
• a student carries his chair into another room
• A student sits on the carpet

What is the unit for mass?

• Kilogram (Kg)
• Newton (N)
• Joule (J)
• Watt (W)

How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?

• 3.8 m
• 3.7 m
• 3.2 m
• 3.6 m