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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 3, Of Warps and Ripples.

Multiple Choice Questions

1. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?
(a) The nuclear-strong force.
(b) Potential electrical force.
(c) Quantum-tunneling force.
(d) Gravitational force.

2. How can black holes be detected?
(a) By looking for dark gaps in clusters of stars.
(b) By observing the directions of solar winds.
(c) With an ultraviolet-range telescope.
(d) By their effects on objects around them.

3. What type of motion cannot be felt or sensed by the moving observer?
(a) Constant-velocity movement.
(b) Orbital movement around a star.
(c) Accelerating movement.
(d) Slowing or decelerating movement.

4. According to general relativity, which of the following is said to warp or bend space-time?
(a) Constant, relativistic speed motion.
(b) Accelerated motion and gravity.
(c) Gravity and electromagnetic fields.
(d) Accelerated motion and orbital motion.

5. Which of the following is a correct statement, based on the theory of special relativity?
(a) Energy only exists relative to mass.
(b) Movement can only be measured relative to very massive objects, such as stars.
(c) Time is always the same to all observers, but space is not.
(d) Time and space are not experienced exactly the same by all observers

Short Answer Questions

1. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?

2. Which of the following is correct about the speed at which light moves?

3. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.

4. What is the result when a particle of matter and a particle of antimatter are brought into contact?

5. What would an outside observer notice about an object moving near the speed of light?

(see the answer key)

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