WORK

Two people push a cart up a 2m tall ramp. It takes them 43s. The cart is 100kg. Find the power developed.

A car produces 175 horsepower. How many joules would it use every hour?

If a car from the problem above has 48000J of motion energy and weighs 1000kg then what is its velocity.

How much energy would the brakes have to expand to stop the car from #2?

If you use a 100w bulb in your bathroom, how3 many Kilowatt-hour would it use if it were on for 24 hours?

A 40kg stone sitting on a cliff fall at any moment. How much PE does it have?

You apply a force of 90N for 3m and in 2sec. Find power.

If you have a power of 200w and you moved a box 4m in 10 sec, how heavy was the box in Kg?

Make a drawing on the back of this sheet that shows some of the energy conversions happening in a city. For example, a car is changing chemical energy into Kinetic energy and sound energy….. Be creative, and use all the types listed here. LIGHT, SOUND, HEAT, CHEMICAL, ELECTRICAL, RADIANT, NUCLEAR, MECHANICAL, POTENTIAL