GRADE 6 REVIEW

What is the amount of matter in an object?

• mass
• gravity
• friction
• weight

What does friction do to objects?

• it creates heat
• it wears objects away
• it causes moving objects to slow down
• all of the above

Which of the following surfaces will have the greatest friction?

• an icy field
• a newly-waxed floor
• a cemented ground
• a sandy beach

What is a kind of energy that travels through space in a straight line?

• heat energy
• sound energy
• light energy
• electrical energy

Which of these objects best exemplifies sound energy?

• 
• 
• 
• 

What does the Law of Conservation of Energy state?

• Energy can either be created or destroyed, and can transform from one form to another.
• Energy can neither be created nor destroyed, but can transform from one form to another.
• Energy can neither be created nor destroyed, and cannot transform from one form to another.
• Energy can be created but not destroyed, but can transform from one form to another.

When you strum an acoustic guitar, what energy conversion is exhibited?

• electrical to sound
• sound to heat
• mechanical to sound
• sound to light

A ball is rolled to the left. If no force at all acts upon it what will happen to the ball?

• It will suddenly stop
• It will heat up and explode.
• It will produce its own light.
• It will not stop.

Which does NOT belong to the group?

• flagpole
• venetian blinds
• chisel
• elevator

This is an example of a:

• 1st class lever
• 2nd class lever
• 3rd class lever
• 4th class lever