If the frequency of an electromagnetic wave increases, does the number of waves passing by you increase, decrease, or stay the same?
What will be an ideal response?
The number of waves passing by increases because the speed of light stays the same.
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Newton concluded that some force must act on the Moon because ____
a. a force is needed to pull the Moon away from straight-line motion b. a force is needed to pull the Moon outward c. a force is needed to keep the Moon in motion d. the Moon has at a constant velocity e. the Moon has a constant acceleration
The website shown in the above figure shows an example of a(n) ______.
A. carousel B. slide show C. card layout D. tabbed window
The work you do when pushing a shopping cart twice as far while applying the same force is
A) half as much. B) twice as much. C) four times as much. D) the same amount.
In science fiction movies, spaceships are often shown dodging through large numbers of closely spaced, boulder-size objects. Which of the following real things in our solar system would look most like such science fiction dangers?
A) the rings of Saturn B) the asteroid belt C) the atmosphere of Jupiter D) the Oort cloud