According to the theory of the same name, after the "Big Bang" there were only what two things?
A. mass and gravity
B. neutrons and electrons
C. matter and antimatter
D. space and time
A subatomic particle is ____ in relation to an atom.
A. bigger
B. smaller
C. faster
D. denser
Who discovered the special theory of relativity?
A. Alfred Nobel
B. Max Plank
C. James Chadwick
D. Albert Einstein
A fresh egg will float in water ____.
A. when salt is added to the water
B. it will not float in any circumstance
C. when the water is cold
D. always
How fast does sound travel through a vacuum?
A. 331.4 m/s
B. 0 m/s
C. 222 m/s
D. 25 m/s
What planet is the slowest rotating and often referred to as Earth's "sister planet?"
A. Venus
B. Jupiter
C. Mercury
D. Mars
A woman has a mass of 50 kg on the moon. What is her mass on Earth?
A. 50 kg
B. 0 kg
C. 25 kg
D. 100 kg
A ball is at the top of a hill. Which factor, or factors, is responsible for its potential energy?
A. its circular shape
B. its position and its mass
C. its mass
D. its acceleration and its position
Which statement is true of a negatively charged particle?
A. It has the same number of protons and electrons.
B. It has no electrons.
C. It has more electrons than protons.
D. It has more protons than electrons.
Which of these statements is true regarding the way light travels?
A. Sound travels faster than light.
B. Light travels as both a wave and a particle.
C. The speed of light is always the same regardless of the medium through which it travels.
D. Light can not travel through a vaccum.
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