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WorksheetsLadders F9: Gravity
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What keeps the moon in orbit around Earth?
a)
the pull of gravity between the moon and sun
b)
the pull of gravity of the sun and other masses in the solar system
c)
the balance between the moon's inertia and the Earth's gravity
d)
the balance between the Earth's inertia nd the moon's gravity
2.
Which of the following can change if an object is moved from one planet to another?
a)
its density
b)
its mass
c)
its volume
d)
its weight
3.
What is gravity?
a)
a force that attracts objects to each other
b)
a force that pushes objects away from each other
c)
the amount of matter in an object
d)
a scientific law about how bodies in space move
4.
What is the way an object tends to resist any change in motion?
a)
force
b)
gravity
c)
inertia
d)
velocity
5.
What is escape velocity?
a)
the velocity of something in orbit around a space body
b)
How fast an object falls to the surface of a planet
c)
the velocity an object needs to escape a space body's gravity
d)
the force needed to send a space probe to another planet
6.
What is the shape of the orbit of most bodies in the solar system?
a)
a circle
b)
a square
c)
an ellipse
d)
a straight line
7.
Earth's gravity pulls objects
a)
toward Earth's center
b)
away from Earth's surface
c)
toward Earth's poles
d)
away from Earth's poles
8.
Between which two objects will the force of gravity be greatest?
a)
Earth and a pencil on Earth
b)
the moon and a school bus on the moon
c)
the moon and a pencil on the moon
d)
Earth and a school bus on Earth
9.
What effect does gravity have on a falling object?
a)
It causes the object to accelerate
b)
It causes the object to slow down
c)
It causes the object to change direction
d)
It causes the object to stop moving
10.
Which of the following is stated in the law of universal gravitation?
a)
All objects in the universe move in an orbit around the sun.
b)
The force of gravity attracts all objects in the universe to one another.
c)
The force of gravity is the same between any two objects in the universe.
d)
The force of gravity between objects increases as the move farther apart.
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