If there is a force of 6N to the left and another force of 10N to the right, what is the magnitude and direction of the net force?
4N to the right
100
What type of friction makes a feather fall slower than a rock?
Fluid Friction
100
What is Newton's Universal Law of Gravitation?
F=G(mm)/(r squared)
100
What is the acceleration due to gravity?
9.8 meters per second squared
200
If there is a force of 8N east, another force of 3N east, and a force of 3N west, what is the magnitude and direction of the net force?
8N east
200
What type of friction keeps you from sliding down a steep hill?
Static Friction
200
What happens to the force of gravity between two objects if the mass of one object is tripled?
The gravitational force is tripled.
200
If a ball is dropped, what is its velocity after two seconds?
19.6 m/s
300
Is force a scalar or a vector?
vector
300
What two factors determine the amount of friction?
The force pushing two things together and the materials they are made of.
300
What happens to the gravitational force between two objects if the distance between the objects is tripled?
The gravitational force decreases by a factor of nine.
300
If a coin is dropped, how far will it have fallen after three seconds?
44.1 m
400
If there is a 4N force to the east and 3N force to the west, what third force (magnitude and direction) would be required to make the forces all balance out to zero?
1N to the west
400
If you push on a table with a force of 3N to the east and the table does not move, what is the magnitude of the frictional force between the table and the floor.
3N
400
What was Einstein's fourth dimension?
Time
400
If a ball is dropped and it lands with a velocity of 15 m/s, for how many seconds did it fall?
approximately 1.5 seconds
500
Gravity forces a sky diver downward with a force of 700N and a parachute pulls the sky diver upward with a force of 500N. What is the magnitude and direction of the net force on the skydiver?
200N downward
500
When you use the brakes on your bicycle to slow down, where does the energy of your motion go?
It goes into heat as the brake pads and the rims heat up.
500
According to Einstein, what causes gravity?
Large masses bend space-time.
500
How long will it take for a watermelon to fall a distance of 6 meters?