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Gravity And Inertia
Test Description: Section review
Instructions: Answer all questions to get your test result.
1) Why the Moon’s gravity has a greater effect on Earth’s ocean tides than the Sun’s gravity?
A
The Moon is closer to Earth than the Sun
B
The Sun has more gravity than the Moon
C
The Moon is farther away from Earth than the Sun
D
The moon has more gravity than the Sun
2) The measurement of the force of gravity on an object is the object's
A
mass
B
density
C
weight
D
volume
3) Which object has the most gravity?
A
Sun
B
Moon
C
Earth
D
Jupiter
4) The larger the object, the __________ the gravity
A
smaller
B
greater
C
no relation between size and gravity
D
none of the above
5) Gravity depends upon the mass of an object and...
A
the shape of the two objects
B
the distance between two objects
C
the density of the two objects
D
the size of the two objects
6) Who concluded that inertia and gravity act together to keep Earth in orbit around the sun.
A
Newton
B
Copernicus
C
all of the above
D
the ancient Greek
7) Gravity on the moon is about 1/6 the gravity felt on the Earth. This is because
A
the moon is so far away from the Earth
B
the moon is so much further from the sun than the Earth
C
the earth has a molten core and the moon doesn't
D
the moon is much less massive than the Earth
8) What would happen to the orbit of the Earth if the gravitational force from the Sun suddenly stopped?
A
The size of Earth would become smaller due to inertia
B
The Earth would continue to move in a straight line due to it's inertia
C
The Earth would be pulled into the Sun due to the force of gravity
D
The Earth would continue to orbit the sun in an elliptical path due to the force of gravity
9) Why the Moon’s gravity has a greater effect on Earth’s ocean tides than the Sun’s gravity?
A
The Moon is farther away from Earth than the Sun
B
The Sun has more gravity than the Moon
C
The Moon is closer to Earth than the Sun
D
The moon has more gravity than the Sun
10) What would happen to Earth if it stopped moving in space (lost inertia)?
A
crash into the Sun
B
Nothing
C
Fly into outerspace
D
Just float
11) What is inertia?
A
The property of matter that slows items down
B
The property of matter that doesn't do anything
C
The property of matter that resists a change in motion
D
The property of matter that moves more quickly
*select an answer for all questions
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