| Quiz 1 Physics 11 Autumn 2011 --- Selected topics from CH. 1, 2 |
| See lecture notes and Ch. 1 - review questions 3, 10 and 20. and exercises 1, 2, 6, 8, and 9 AND Ch. 2 - CheckPoint questions on pages 20, 23, 24, 27, 28, 29 . |
| 1. When the Sun was directly overhead in Syrene, why was it not directly overhead in Alexandria ? |
| (a) because light bends (b) because of the curvature of the Earth between Syrene and Alexandria (c) because Alexandria is sitting on the side of a mountain (d) nota |
| 2. The Sun is highest in the sky at noon during the |
| (a) summer solstice (b) winter equinox (c) summer equinox (d) nota |
| 3. The 2nd step in the Scientific Method
is
(a) predict the consequences of the hypothesis (b) make a hypothesis (c) perform experiments or make measurements and calculations to test the hypothesis. |
| 4. The 4th step in the Scientific Method
is
(a) predict the consequences of the hypothesis (b) make a hypothesis (c) perform experiments or make measurements and calculations to test the hypothesis. |
| 5. If a hypothesis is scientific, then
there exists an experiment to test the (a) "rightness" of the hypothesis (b) "wrongness" of the hypothesis. |
| 6. "The planet Mars is made of foam rubber" is a scientific hypothesis. (a) True (b) False |
| 7. When Eratosthenes set to measure the size of the Earth, his underlying hypothesis was the Earth was (a) spherically round (b) flat and shaped like a circular pancake (c) cone shaped (d) nota |
| 8. If the Earth were larger than it is, but the Alexandria - to Syrene distance was the same, at noon during summer solstice, the shadow of the vertical pillar in Alexandria would be ( a) longer (b) shorter |
| 9. A brick slides across a table at constant speed in a straight line. You push the brick to keep it moving . There are two horizontal forces acting on the brick, your push force and the friction force. Which force is greater in magnitude? (a) push force ( b) friction force (c) both have the same magnitude |