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Gravity
Test Description: Factors that affect gravity, how gravity affects the motion of objects on Earth and in space
Instructions: Answer all questions to get your test result.
1) The closer a planet is to the sun the
A
distance, speed and gravity are not related
B
lower its speed
C
greater its speed
D
lower the gravity
2) The larger the mass of the object, the __________ the gravity
A
smaller
B
no change in (stays constant)
C
greater
D
no relation between mass and gravity
3) What causes the tides?
A
the acceleration of the Earth in orbit around the Sun
B
differences in wind speed around the Earth
C
the gravity between the Earth and the moon
D
the gravity between the Venus, the Earth, and Mars
4) Jupiter is the largest planet in our Solar System: it has as much mass as about 300 Earths! Venus is slightly smaller than Earth and has about the same mass. How does Jupiter's gravity compare to Venus?
A
Venus is more compact than Jupiter, so Venus has more gravity
B
Jupiter is farther from the Sun than Venus, so Jupiter has more gravity
C
Venus is closer to the Sun, so Venus has more gravity than Jupiter
D
Jupiter is more massive than Venus, so Jupiter has more gravity
5) Which of the following are the two factors that affect gravity?
A
acceleration and distance
B
mass and weight
C
mass and distance
D
weight and distance
6) There are many objects that are part of our Solar System including planets, moons, asteroids, and the Sun. Which of those objects has the greatest gravitational force?
A
planets
B
moons
C
the Sun
D
asteroids
7) As distance increases between two objects, gravity ______________.
A
increases
B
decreases
C
is not affected
D
stays the same
8) Which of the following is NOT true?
A
Gravitational pull is less on the moon than on the Earth
B
There is no gravitational pull on the moon
C
Gravitational pull is less on top of Mount Everest than at sea level
D
There is a greater gravitational pull on Jupiter than on Earth
9) As an object travels far away from Earth, her weight _____________.
A
remains the same because her mass remains the same
B
decreases because gravity decreases
C
increases because gravity increases
D
decreases because mass decreases
10) When gravitational forces and air resistance equalize on an object that is falling toward Earth and the object stops accelerating, what is the velocity of the object called?
A
resultant velocity
B
instantaneous velocity
C
terminal velocity
D
average velocity
*select an answer for all questions
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