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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. What do the double walls of a thermos enclose?
(a) Oxygen.
(b) Argon.
(c) Nitrogen.
(d) A vacuum.

2. What makes it possible to use light and radio waves to communicate?
(a) They have short bursts of energy.
(b) They oscillate.
(c) They coalesce.
(d) They travel in patterns.

3. What is the resistance of an object to any change in its speed or direction?
(a) Gravity.
(b) Lift.
(c) Inertia.
(d) Propulsion.

4. What is the term for the process of molecules moving further apart in convection?
(a) Inference.
(b) Acceleration.
(c) Trajection.
(d) Expansion.

5. What is an example of a second-class lever?
(a) A clock.
(b) A crane.
(c) An engine block system.
(d) A nutcracker.

Short Answer Questions

1. What principle does a thermostat use?

2. What are different level marks for different types of water on the side of a ship called?

3. When an object absorbs light rays, how is the energy held in the object?

4. What happens when visible rays cross the lens of our eye and are bent through the convex surface?

5. What is the distance between each peak of energy in a wave?

(see the answer key)

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