Energy, Motion, And Force Vocab Flashcards
(18 cards)
Potential energy
The stored energy of position
Potential energy can be changed to kinetic energy when a force causes it to change in position
Kinetic energy
The energy in moving things
Force
Forces are interactions between two things
A force is a push or pull that produces or prevents motion
Fiction, gravity, magnetism, and buoyancy are some examples of forces
Friction
Running
a force that acts against the motion of one surface over another
friction can be helpful or it can be harmful
Gravity
The force that pulls things down to the center of the earth
Motion
A continuing change of place or position
The law of conservation of energy
This theory states that energy cannot be created or destroyed
it can only be changed, or transformed
Speed
Speed is the rate at which an object moves
Speed =
Distance/time
Distance =
Speed * time
Time =
Distance/speed
Velocity
How fast and in what direction object moves
Inertia
The tendency to resist changes in motion
Weight
A force due to the gravitational attraction between the object and the earth
Is a downward force that acts on the object
The units of measurement are newtons
Acceleration
The rate of change in velocity
The speeding up, slowing down, or change of direction of an object
Momentum
Depends on the mass and the velocity of the object
Work
The transfer of energy through both force and motion, with the force in the direction of the motion
Work is done an object moves while there is a force acting on the direction of motion
The formula for work is: W = F x D
Energy
The ability to do work or cause change
Energy is needed to make things move
