Gravity and Motion Answers
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Which action results from the combination of gravity and inertia working on the moon?
A
the moon’s orbit around EarthB
Earth’s downward pull on the moonC
the moon’s push against other planetsD
Earth’s gravitational pull toward the moon2
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Which description explains how inertia changes the effects of gravity on objects in the solar system?
A
keeps the Sun stationaryB
pulls asteroids toward EarthC
causes shooting stars to stop movingD
prevents planets from pulling into one another3
A student is asked to describe the path of a paper airplane that is thrown in the classroom.Which statement best describes the path of the paper airplane?
A
The paper airplane will move in a straight line, according to Newton’s first law of motion.B
The paper airplane will drop straight to the ground once its inertia gives in to the force of gravity.C
The paper airplane will create a curved path toward the floor as it is pulled toward Earth’s center.D
The paper airplane will orbit around the desk because it is the object with the largest mass in the room.4
Which statement explains how gravity and inertia work together?
A
They change the motion of objects.B
They take turns working on objects.C
They keep all objects moving at the same speed.D
They prevent objects from moving in a circular motion.5
The diagrams show objects’ gravitational pull toward each other.
A
Gravity attracts only larger objects toward one another.B
Gravity attracts larger objects only if they are close to one another.C
If the masses of the objects increase, then the force between them also increases.D
If distance between the objects increases, then the amount of force also increases.6
Which statement explains how weight is different from mass?
A
Mass is a varying property.B
Mass is measured in newtons.C
Weight is always greater than mass.D
Weight is a measure of gravitational pull.7
Which statement describes a newton?
A
It exists only for objects on Earth.B
It measures the mass of an object.C
It reflects the amount of force an object exerts.D
It states that every object attracts another object.8
Which statement describes how Earth compares to the moon?
A
Earth has more inertia than the moon.B
The moon has more gravitational pull than Earth.C
The moon rotates at a constant speed while Earth’s speed varies.D
Earth and the moon will not change their motion when acted on by a force.Did you find these answers helpful?
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