1. The Principle of Relativity says that a Everything always falls at the same rate b) You cannot tell how fast you are

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1 The Principle Of Relativity Says That A Everything Always Falls At The Same Rate B You Cannot Tell How Fast You Are 1 (70.95 KiB) Viewed 18 times

1. The Principle of Relativity says that a Everything always falls at the same rate b) You cannot tell how fast you are moving except by comparing your speed to something which is not moving along with you c) That two and two do not always make four d) That when you are in motion, you can measure how fast you are going by weighing yourself to see how much your mass has increased c) That when you are in motion, you can realize this by seeing if your clock is running slow 2. When he had formulated his Principle of Relativity, Einstein realized there was another principle he needed to go along with it to construct his theory of special relativity. This principle was a) The Principle of Equivalenca b) The Principle of General Relativity - c) The Principle of the Constancy of Lightspeed- d) The Principle of Energy Conservation e) The Principle of Compound Interest 3. You and a friend each have a meter stick and your friend flies past you in a spaceship moving at half the speed of light. Each of you measure both meter sticks during the flyby. Which of the following should be true? (a) You both agree that your friend's meter stick is shorter than yours You both agree that your friend's meter stick is longer than yours c) You think your friend's meter stick is longer than yours, but your friend thinks yours is longer d) You think your friend's meter stick is shorter than yours, but your friend thinks yours is shorter e) You both think that the two meter sticks are the same length 4. You have a solid metal weight with a mass of 1 kg. You heat it in a pot of boiling water so as to add 9 J to its store of thermal energy. What does E=mc tell us about the mass of the metal weight after this heating? Keep in mind that c=300,000,000 m/s (the speed of light in vacuum). a) It's mass is now 1.0000000000000001 kg b) It's mass is now 1.00000003 kg c) It's mass is now 1.1 kg