View a FREE sample

This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. Where are wheels and axles found?
(a) Just on cars and bikes.
(b) Wherever there is rotary motion.
(c) Where a spoke and center come together.
(d) On all pulley systems.

2. How does a ship vary in density?
(a) According to its load.
(b) According to how long it takes to get underway.
(c) According to the speed it is making.
(d) According to how much water is on board.

3. What causes expansion?
(a) Heat.
(b) Inertia.
(c) Gravity.
(d) Cold.

4. What is the effort you put in combined with the distance over which the effort is done?
(a) Work.
(b) Gravity.
(c) Mendal's law.
(d) Rest.

5. In how many elements did the Greek believe?
(a) Four.
(b) Three.
(c) Eight.
(d) Seven.

Short Answer Questions

1. What do machines that keep something cool do to heat?

2. What does the picture of a mammoth pulling a merry-go-round illustrate?

3. How does a zipper operate?

4. What happens when molecules are squeezed or stretched beyond the boundaries of their comfortable balance?

5. What happens if the force of upthrust is equal to the weight of an object in water?

Short Essay Questions

1. How do the rotor blades on a helicopter work?

2. Discuss the relation of effort to distance.

3. How do heating elements work?

4. How does the atom bomb work?

5. What is an internal combustion engine? Cite several examples of such engines.

6. Explain thermal radiation.

7. Discuss what happens when a driving force initiates movement.

8. How can electric heat keep things cold?

9. Discuss the concept of floating.

10. What is a vacuum? What is one invention that uses this principle?

(see the answer keys)

This section contains 893 words (approx. 3 pages at 300 words per page) View a FREE sample