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- 1. Multiple Choice
Every object with mass is gravitationally attracted to each other object with mass in the entire universe.
True
False
- 2. Multiple Choice
What factors affect gravitational force?
mass, distance
speed, distance
momentum, mass
- 3. Multiple Choice
What is the relationship between mass of object and distance between objects..
When mass increases, gravitational force increases
When mass increases, gravitational force decreases
When mass decreases, gravitational force increases
- 4. Multiple Choice
Gravity on moon is less than the gravity on earth because
a. moon's mass is less
b. moon's mass is more
c. moon's mass is equal to Earth
d. moon has no mass
- 5. Multiple Choice
If one of two objects decreases its mass, it _________ the gravitational pull between the two objects
increases
decreases
has no effect on
eliminates
- 6. Multiple Choice
If two objects decrease their distance, it _________ the gravitational pull between the two objects
increases
decreases
has no effect on
eliminates
- 7. Multiple Choice
The mass of the Sun is 2.0 × 1030 kg and the mass of the Earth is, me = 5.97 × 1024kg. The distance from the Earth is 1.50 × 1011km. What is the gravitational force between the Sun and the Earth?
(G = 6.67 × 10-11 N m-2 kg-2)
1.54 x 1022 N
2.54 x 1022 N
3.54 x 1022 N
4.54 x 1022 N
- 8. Multiple Choice
A rocket of 2.5 x 104 kg moves from Earth to the moon. The mass of the Earth is me = 5.97 × 1024kg. Calculate the Earth’s gravitational force on the rocket when its distance from the Earth is 1.0 x 109 m. (G = 6.67 × 10-11 N m-2 kg-2)
9.95 N
8.95 N
10.95 N
9.81 N
- 9. Multiple Choice
A sphere with mass 100 kg is brought to the top of a mountain of height 6000 m. What is its weight there?
A 960 N
B 975 N
C 980 N
D 981 N
- 10. Multiple Choice
Einstein was finally able to explain HOW gravity works when he theorized that an object's mass BENDS the fabric of space, thus drawing nearby objects in toward the bend.
True
False
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