Work, Power, and Simple Machines Quiz

Which of the following is an example of a lever?

• Wheelbarrow

• Spoon

• Seesaw

• Pencil

What is the purpose of a pulley?

• To lift heavy objects

• To lower heavy objects

• To push heavy objects

• To rotate heavy objects

Which of the following is an example of an inclined plane?

• Bridge

• Ramp

• Ladder

• Stairs

A lever with the fulcrum closer to the load will result in:

• Less mechanical advantage

• No mechanical advantage

• Greater mechanical advantage

• Equal mechanical advantage

How does a fixed pulley change the direction of force?

• By redirecting the force

• By increasing the force

• By reducing the force

• By eliminating the force

Which of the following is an example of a wheel and axle?

• Bicycle

• Car

• Screwdriver

• Pencil

What is the unit of power?

• ampere

• volt

• ohm

• watt