Week 5-Nut

What is this called?  A ....

Are the metal parts a conductor or insulator?

• a conductor

• an insulator

Why do we put plastic around copper wires?  Because the plastic ...

• a) insulates the heat energy inside

• b) keeps us safe from electrical fires

• c) makes the energy hotter

• d) both a and b are correct

Cable Cars can be used on inclines.

• YEP

• NAH

 ....  is the energy source for a cable car.

• a) A solar panel

• b) An electric motor in the cable car

• c) An electric motor in the building at the top of the incline

• d) Gravity

What kind of energy is there when the rubber band is pulled back on a launcher?

• elastic potential energy

• kinetic energy

If you want your pompom to go a short distance from your launcher, what should you do?  Pull the rubber band back ...

• as much as you can

• as little as you can

• It doesn't matter how much you pull back.

Where did the energy come from that allowed you to pull the rubber band back on the launcher?

• You input potential (stored) energy into the rubber band system

• You input kinetic energy into the rubber band system

• God

• Monkey