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This quiz consists of 5 multiple choice and 5 short answer questions through Part 3, Working with Waves.

Multiple Choice Questions

1. How does a wedge move an object up an inclined plane?
(a) It uses the effect of gravity.
(b) It lowers the plane so the object slides.
(c) It forces the object to reduce the effects of gravity.
(d) It doesn't ; the wedge moves the plane itself to raise an object.

2. When an object absorbs light rays, how is the energy held in the object?
(a) As kinetic energy.
(b) As heat.
(c) There is no energy involved.
(d) As inertial energy.

3. What are two things a sail can do for a craft?
(a) Propel and repel.
(b) Propel and stop.
(c) Lift and Slow.
(d) Give pulpulsion and direction.

4. What happens if the force of upthrust is equal to the weight of an object in water?
(a) The object floats.
(b) The object sinks.
(c) The object moves across the surface of the water.
(d) The object projects out of the water.

5. What is the action of something burning?
(a) Radiation.
(b) Combustion.
(c) Molecular deceleration.
(d) Convection.

Short Answer Questions

1. What is additive mixing?

2. What causes increased heat in the process of conduction?

3. What emits both infrared and light rays?

4. What does the frequency of sound waves create?

5. What do the double walls of a thermos enclose?

(see the answer key)

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