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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 4, Microscopic Weirdness.

## Multiple Choice Questions

**1. According to general relativity, all objects that have mass have what effect on space-time?**
**(a)** They fold space-time as they move past one another. **(b)** They warp space-time around them. **(c)** They tear space-time when they travel at near-light speeds. **(d)** They stretch space-time for other very distant objects.

**2. Quantum physics began with the study of the energy inside a heated, closed container, such as an oven. The problem with theories at the time was that they predicted that _____.**
**(a)** The oven can store more energy the smaller it is. **(b)** The oven contains no energy. **(c)** The oven can only store energy if it has no mass. **(d)** The oven contains infinite energy.

**3. According to special relativity, which of the following can move faster than light?**
**(a)** Neutrinos. **(b)** Nothing can move faster than light. **(c)** Gravitational waves. **(d)** Quantum data.

**4. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?**
**(a)** There must be an even number of peaks and troughs. **(b)** The energies of all waves inside the over must cancel out to zero. **(c)** The frequencies of the waves must all be the same. **(d)** They must have a whole number of peaks and troughs that fit perfectly inside the container.

**5. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.**
**(a)** Has a finite boundary. **(b)** Is not flat, it is curved, either inwards or outwards. **(c)** Is uniform in all places and times. **(d)** Is not static, it must either be shrinking or expanding.

## Short Answer Questions

**1.** What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?

**2.** Which of the following did Einstein considered time?

**3.** Einstein's equation, E=mc^2, states that which of the following are equivalent?

**4.** General relativity is incompatible with _____.

**5.** According to general relativity, the change that an object causes in the fabric of space-time depends directly on _____.

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