science final apo. Word Scramble
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| Question | Answer |
| If an objects position does not change relative to a reference point, is it in motion relative to that reference point? | no |
| A glass is sitting on a counter. Is it in motion? | It is moving relative to many reference points |
| What is the speed of a boat that travels 10 miles in 30 minutes? | 20 miles per hour |
| What is the speed of a jogger who jogs 6km in 45 min? | 6,000 |
| Electromagnetic waves | A transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field |
| The Law of Reflection | The angle of reflection equals the angle of incidence |
| First general rule of light | When light refracts into a substance in which it must slow down, the light ray will bend toward a line perpendicular to the surface it strikes |
| Second general rule of light | When light refracts into a substance in which it speeds up, the light ray will bend away from a line perpendicular to the surface it strikes |
| A car and truck are traveling north on a highway. The truck has a speed of 45mph and the car has a speed of 57mph. I the truck is ahead of the car, what is the relative velocity? | 12 mph heading toward each other |
| If an object travels for fifteen minutes with a constant velocity of 12mph west, what is the acceleration? | acceleration is 0 |
| A sports car goes from a velocity of 12 meters per second east in 2 seconds. What is the cars acceleration? | 6m/sec east |
| A train takes a long time to stop. If a train is traveling at 30mph south and takes 12 min. to stop, what is the train's acceleration. | 150 mph north |
| A very picky physicist states that it is impossible for any object to experience free fall near the earths surface. Why is the physicist technically correct? | for an object to experience free fall it can only be influenced by gravity. Air resistance is a second influence and all object experience air resistance. |
| Even though the physicist is technically correct why do we go ahead and assume that heavy objects are in free fall when they fall near the surface of the earth? | the effect of air resistance is so small on heavy objects that it usually can be ignored. |
| A long vertical glass tube contains a feather and a penny. All the air is pumped out, and the tube is inverted, causing the penny and the feather to fall. Which hits the bottom first, the feather of the penny? | neither will hit first, they will both hit at the same time. |
| What is the height of a building(in meters)if it takes a dropped rock 4.1 seconds to fall from it's roof? | 82.4 meters |
| A hot-air balloonist drops a rock from his balloon. It takes seven seconds for the rock to hit the ground. What is the balloonists altitude in feet? | 784 ft. |
| A scientist decides to study the acceleration of an object moving in a straight line. He measures the distance the object travels in 30-sec. time intervals. The scientist notices |
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iamadramaqueen
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