PS Topic 3.2b Eval – Work & Power

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

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

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

How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?

Match the following definitions next to their correct term.

How much power is the  tractor that drags a plow with a force of 500 N a distance of 10 meters in 20 seconds?

If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?

If 68 W of power is produced in 18 seconds, how much work is done?

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

Match the following units next to their corresponding term.

Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.