Science
7th Grade
NGSS covered
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15 questions
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1.
MATCH QUESTION
1 min • 5 pts
Match the following
Distance
The force that causes objects with mass to attract to one another
Solar system
The change in an object's position with respect to time and in comparison with the position of other objects used as reference points
Gravity
A star and the group of planets and otehr celestial bodies that are held by its gravitational attraction and revolve around it
Motion
A push or pull that can change the motion of an object
Force
A measure of how far apart two objects are
Tags
NGSS.MS-PS2-4
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The gravitational attraction between two objects is reduced most when–
The masses are increased and the distance between them is decreased.
The masses are decreased and the distance between them is increased.
The masses are increased and the distance between them is increased.
The masses are decreased and the distance between them is decreased.
Tags
NGSS.MS-PS2-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The orbital paths of objects in our solar system are the result of which of the following?
The balance between the motion of the bodies and gravitational forces.
The frictional forces acting on the bodies when they hit space debris.
The shapes of the bodies and their chemical compositions.
The relative ages of the bodies and their chemical compositions.
Tags
NGSS.MS-PS2-4
NGSS.MS-ESS1-2
NGSS.MS-PS2-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Satellites have a forward motion when launched into orbit. What keeps a satellite from flying off into space and keeps it in orbit around Earth?
The gravity of the Sun pushes the satellite into orbiting Earth.
There is no gravity above Earth’s atmosphere.
The gravity of Earth pulls the satellite into orbit.
Frictional forces in space push the satellite back into orbit.
Tags
NGSS.MS-PS2-4
NGSS.MS-ESS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If there were no atmosphere on Earth, which object would hit the ground first?
The feather because it has less mass.
The feather because it is smaller.
Both objects would hit the ground at the same time.
The hammer because it has more mass.
Tags
NGSS.MS-PS2-4
NGSS.MS-PS2-2
NGSS.MS-PS2-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Every object that has mass has a gravitational force. Why are we unable to feel the gravitational force of the objects around us?
The objects are not close enough for us to feel their gravitational force.
The objects around us are not large enough to generate a gravitational force.
The gravitational force of Earth is too small compared to that of the objects around us.
The gravitational force of Earth is so large compared to the objects around us.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the Moon orbit Earth and not the Sun?
The Moon orbits Earth and not the Sun because Earth’s atmosphere gives Earth greater gravitational pull than the Sun.
The Moon orbits Earth and not the Sun because the Moon would burn up from the Sun’s extreme heat if the Moon were to orbit the Sun.
The Moon orbits Earth and not the Sun because Earth has more mass than the Sun. The greater the mass, the greater the gravitational pull.
The Moon orbits Earth and not the Sun because Earth is closer to the Moon than the Sun is. The shorter the distance between two celestial objects, the greater the gravitational pull.
Tags
NGSS.MS-ESS1-2
NGSS.MS-ESS1-1
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