What force holds the planets in motion around the sun?
Magnetic
Electrical
Gravitational
Air Resistance
2. Multiple Choice
45 seconds
1 pt
What does the strength of gravity between two objects depend upon?
Mass & distance
Mass & weight
Gravity & inertia
Inertia & mass
3. Multiple Choice
20 seconds
1 pt
All objects in the universe have a gravitational attraction to each other.
True
False
4. Multiple Choice
20 seconds
1 pt
What force brings the pencil down?
Applied
Magnetic
Normal
Gravitational
5. Multiple Choice
20 seconds
1 pt
What force ultimately slows the roller coaster to a stop?
Applied
Normal
Friction
Magnetic
6. Multiple Choice
20 seconds
1 pt
An _______ force must act on an object for it to CHANGE it's motion
balanced
unbalanced
gravitational
electrical
7. Multiple Choice
20 seconds
1 pt
Jupiter has about 317 times more mass than Earth. What can you infer from this fact?
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
That Jupiter’s and Earth’s gravitational forces are equal.
Mass has no effect on the gravitational force between two objects
8. Multiple Choice
20 seconds
1 pt
What is defined as a push or pull?
force
motion
vector
speed
9. Multiple Choice
45 seconds
1 pt
This type of force resist motion between two surfaces that are pressed together
contact
gravity
friction
10. Multiple Choice
20 seconds
1 pt
If the net force is equal to zero, the forces acting on the object are
balanced
unbalanced
11. Multiple Choice
45 seconds
1 pt
Balanced forces do not change the objects speed or
direction
distance
time
mass
12. Multiple Choice
20 seconds
1 pt
The unit of force is
m/s
m/s^2
newton
kg
13. Multiple Choice
45 seconds
1 pt
Forces that have a net force of zero ( the object is still).
Balanced force
Unbalanced force
14. Multiple Choice
45 seconds
1 pt
What is the net force?
5000 N right
4000 N right
40 N left
4000 N left
15. Multiple Choice
45 seconds
1 pt
Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?
400 N
24 N
0 N
40 N
16. Multiple Choice
45 seconds
1 pt
What is the net force in this picture?
50 Newtons to the right
950 Newtons to the right
950 Newtons to the left
50 Newtons to the left
17. Multiple Choice
30 seconds
1 pt
What is it called when the force of gravity is acting on an object?