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Name: ______________________ Date: ______________ Pre-Test: Objects in Motion Unit A. Circle the correct answer. Pick the one you think applies the most but don’t Christmas Tree it! 1) What does gravity affect? a. The weight of an object. b. The color that we see an object as being. c. How tall an object is. d. Everything, everywhere. e. None of the above. 2) Newton’s 1st Law of Motion states a. That people should do unto others as they would have people do unto them. b. That objects in motion will stay in motion until acted upon by an outside force. c. That the motion of an object will not be affected unless a strong wind blows. d. You should always eat your vegetables. e. An eye for an eye, a tooth for a tooth. 3) Inertia is defined as a. The tendency of an object to stay in motion or an object at rest that tends to stay at rest. b. A property of matter. c. The tendency of an object to collide with another object, causing combustion. d. Ms. Forehand’s middle name. e. Both A and B. 4) Velocity and acceleration are both a. Theories created by Albert Einstein and tested by other scientists. b. Affected by gravity. c. Used to calculate the airspeed of an unladen swallow. d. Processes by which the human body makes proteins. e. Figments of your imagination. 5) What is the acceleration due to gravity on earth? a. b. c. d. e. 9.81 m/s2 5.43 m/s3 120.43 m/s2 10.2 m/s4 9.81 m/s3 B. Match the formulas. Some formulas may not be used. 6) Velocity formula 7) Acceleration formula 8) Force formula a. b. c. d. e. F/m d/t mxa m/v -b + √b2-4ac 2a C. Use the WORD BANK to fill in the blanks in the paragraph. Some words may be used once, twice or not at all. Today in class Sarah and Michael are doing an experiment with a rocket. They first write down their (9)______________which they came to by using their knowledge from doing research. Michael is trying to calculate the (10)________________ of the rocket if the (11)_________ is 3.54 kg and the force is 9.22 Newtons. Sarah records their finding in a (12)________________ to report what they have found. Sarah and Michael now have to calculate the mass of the rocket if it were on the moon. They both know that on the moon, the mass is (13)_____ ________ of the weight that it is on earth. When the rocket returns to earth it will be in (14)____________ until some sort of force stops it. This property of matter is known as (15)___________. WORD BANK a.) lab book b.) one-sixth c.) one-eighth d.) force e.) inertia ab.) mass Answer Key: 1. D 2. B 3. E 4. B 5. A 6. B 7. A 8. C 9. BD 10. AD 11. AB 12. A 13. B 14. C 15. E ac.) ad.) ae.) bc.) bd.) questions acceleration velocity motion hypotheses