Grade 7 Physics Review

All matter looks the same.

• True

• False

Particles that cause static electricity flow.

• True

• False

Which of these materials is a good conductor of electricity?

• Rubber

• Glass

• Metal

• Newspaper

• 1

• 2

• 3

• none of them

Charge by conduction requires no contact at all.

• True

• False

• Open circuit

• Closed circuit

• Linear circuit

• Parallel circuit

Energy can be created.

• True

• False

What substance can be attracted to a magnet?

• Silver

• Lead

• Water

• Iron

What is a disadvantage of Solar Energy?

• It is weather dependent.

• The sun doesn't create enough energy for us.

• It can emit harmful radiation to humans.

Wind turbines, solar panels, and geothermal are examples of “renewable” energy because ...

• they do not work together

• Energy from the wind, sun, and thermal heat from the ground do not run out.

• You have to “renew” it, because it gets old.

• None of the above