Gravity is a force of attraction between objects that is due to their masses.
What is Gravity?
100
An objects change in position relative to a reference point.
What is Motion?
100
Friction is a force that opposes motion between two surfaces that are in contact.
What is friction?
100
A push or pull exerted on an object in order to change the motion of the object; force has size and direction.
What is a force?
200
When you use a bathroom scale, you are measuring the amount of WHAT between your body and the Earth.
What is gravitational force?
200
Isaac Newton.
Who discovered gravity?
200
Average speed =total distance/total time
What is the equation for finding out somethings speed?
200
Kinetic friction means ''moving'' and static friction means ''not friction''.
What does kinetic friction and static friction mean?
200
The combination of all of the forces acting on an object.
What is net force?
300
The SI unit of mass is THIS.
What is the kilogram?
300
Why do objects fall toward Earth, and what keeps the planets moving in the sky?
What are the questions Isaac Newton asked?
300
North, South, East, West, up or down
How can you describe the direction of an objects motion?
300
Kinetic friction and static friction.
What are the two different types of friction?
300
When the net force on an object is not 0 N
How does an object have an unbalanced force.
400
If an object is moved to Jupiter, it's weight will do THIS, while it's mass will stay the same.
What
400
Gravitational Force Decreases as Distance Increases
If Gravitational Force Increases as Mass Increases what happens if Gravitational Force Decreases?
400
Earth
What is an example of an object that rotates around a rotation axis?
400
One way to increase friction is to make a surface rougher. Another way to increase the force pushing the surfaces together.
What are two ways to increase friction?
400
You can determine the effect of the net force on the object's motion.
What can you determine if you know the net force on an object?
500
THIS is a unit of mass, not weight.
What is a kilogram?
500
All objects in the universe attract each other through gravitational force.The size of the force depends on the objects and the distance between the objects.
What is the Law of Universal Gravitation?
500
Average acceleration=final velocity-starting velocity/time it takes to change velocity
What is the algorithm for acceleration?
500
The amount of friction depends on the force pushing the surfaces together. The close contact increases the friction between the surfaces.
What is the effect of force on friction?
500
It is necessary to change the motion of a moving object, such as change in speed or change in direction.