The speed of an object is a measure of how far something moves in a given amount of time.
What is the speed of an object?
100
A force is simply a push or a pull.
What is a force?
100
Gravity is a force of attraction between objects due to their mass.
What is gravity?
100
it means that the energy can be neither destroyed nor created
What does law of conservation of energy mean ?
200
potential energy is stored energy that an object has due to its position, condition, and chemical.
What is potential energy ?
200
Motion is a change in position over time
What is motion?
200
The net force is the combination of all the forces acting on an object
What is a net force?
200
Objects with greater mass have more attraction between them.
How does gravity depend on mass?
200
A location to which you compare other locations.
What is a reference point?
300
potential energy affects kinetic energy move. Potential energy is stored energy and kinetic energy needs that energy to move and stop.
how does potential energy affect kinetic energy ?
300
Average speed is a way to calculate the speed of an object that may not always be moving at a constant speed.
What is average speed?
300
Unbalanced forces produce a change in motion, for example it can change in speed or direction.
What happens when a force is unbalanced?
300
gravity pulls down and no other forces are action on it, that is the same thing as free fall.
how does gravity work with free fall ?
300
a quantity that has both size and direction.
What is a vector?
400
A CAR!!!
What object has the most kinetic energy, a car, a runner,or a bike?
400
speed works with motion because when speed is occuring, motion is occuring as well.
how does speed work with motion?
400
Balanced forces will not cause a change in the motion of a moving object , and will not cause a non-moving object to start moving.
What happens when forces are balanced ?
400
Earth's gravity pulls everything toward Earth's center. It pulls, but does not push, so it is called an attractive force.
How is gravity an attractive force?
400
velocity is speed in a specific direction.
What is velocity?
500
kinetic energy and potential energy are different because kinetic energy is the energy of motion and potential energy is stored energy, but they still have the ability to cause change.
Why is kinetic energy and potential energy different?
500
Velocity distributes to speed and motion because velocity is a speed in specific direction so velocity is using speed as well as motion too.
How does velocity distribute to speed and motion?
500
When a force acts on an object, it changes the object's motion.
How can forces transfer energy ?
500
The objects far apart have a weaker attraction than objects close together.