Input: Answer this question:
Which situation would most likely cause an object to travel in a circular motion?
OPTIONS:
- one force acting on the object in the opposite direction of the motion
- two forces acting on the object in the same direction as the motion
- one force acting on the object perpendicular to the direction of the motion
- two forces acting on the object in different directions to the motion
Answer: one force acting on the object perpendicular to the direction of the motion

*Question*: The length of a year is equivalent to the time it takes for one OPTIONS:
- rotation of Earth
- rotation of the Sun
- revolution of Earth around the Sun
- revolution of the Sun around Earth
*Answer*: revolution of Earth around the Sun

question:
Which of the following statements best describes one way that the Moon is different from Earth?
OPTIONS:
- The Moon is not solid.
- The Moon has no gravity.
- The Moon has almost no atmosphere.
- The Moon receives almost no solar light.

answer:
The Moon has almost no atmosphere.

[Q]: The source of energy for the Earth's water cycle is the
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OPTIONS:
- wind
- Sun's radiation
- Earth's radiation
- Sun's gravity
****
[A]: Sun's radiation

question below:
A company is creating an advertisement for its custom-made guitars. Which of the following statements should be in the advertisement to best emphasize the company's custom production processes?
OPTIONS:
- Our guitars are made using hand tools.
- We make our guitars to your specifications.
- We produce and sell thousands of guitars each year.
- Our guitars are the best quality your money can buy.
answer below:
We make our guitars to your specifications.

Which force keeps the planets in their orbits around the Sun?
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OPTIONS:
- gravity
- magnetism
- electricity
- friction
gravity