Gravity Answers
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Hector drew the diagram below to illustrate projectile motion.
A
He should switch the labels “Gravity” and “Inertia.”B
He should make the arrow for “Path” curve downward.C
He should switch the labels “Inertia” and “Path.”D
He should make the arrow for “Inertia” curve downward.2
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Which change will always result in an increase in the gravitational force between two objects?
A
increasing the masses of the objects and increasing the distance between the objectsB
decreasing the masses of the objects and decreasing the distance between the objectsC
increasing the masses of the objects and decreasing the distance between the objectsD
decreasing the masses of the objects and increasing the distance between the objects3
Which describes an object in projectile motion?
A
Gravity acts to push the object sideways.B
The object moves in a straight path.C
The forward velocity of the object is 0 m/s.D
The object’s inertia carries it forward.4
A spacecraft is launched from Earth toward the moon.
A
closer to Earth than to the moon because the moon has greater mass than EarthB
closer to the moon than to Earth because the moon has greater mass than EarthC
closer to Earth than to the moon because Earth has greater mass than the moonD
closer to the moon than to Earth because Earth has greater mass than the moon5
What is the weight, on Earth, of a book with a mass of 1.5 kg?
A
1.5 NB
6.5 NC
11.3 ND
14.7 N6
When does a skydiver achieve terminal velocity?
A
when gravity equals air resistanceB
when gravity is greater than air resistanceC
when air resistance acts on the diver and gravity does notD
when gravity acts on the diver and air resistance does not7
What units are used to measure mass and weight?
A
Mass and weight are measured in kilograms.B
Mass and weight are measured in newtons.C
Mass is measured in kilograms, and weight is measured in newtons.D
Mass is measured in newtons, and weight is measured in kilograms.8
What determines the path that an object in projectile motion follows? (Ignore air resistance)
A
gravity onlyB
inertia onlyC
gravity and inertiaD
neither gravity or inertia9
What is the only force that can act on an object in free fall?
A
gravityB
frictionC
air resistanceD
speed10
Which statement best compares the accelerations of two objects in free fall?
A
The heavier object has a greater acceleration.B
The object that has the greater surface area has the lower acceleration.C
The object that has the smaller mass has the greater acceleration.D
The objects have the same acceleration.Did you find these answers helpful?
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