Motion
Total distance traveled divided by total time needed to travel that distance.
What is average speed?
Slowing down.
What is accelerating?
An equal and opposite reaction.
What completes the phrase, “For every action there is...”?
Friction.
What is the force that slows a sliding object?
Work output divided by work input.
What is efficiency?
The process of changing position.
What is motion?
Change in velocity.
What is acceleration?
It is the same. (The law of conservation of momentum)
How does final momentum of a system compare to initial momentum?
Air resistance.
What is the upward force of an object falling through the air?
Work depends on these...
What is force and distance?
How velocity changes with time.
What is velocity?
The final position minus the initial position.
What is displacement?
Acceleration.
What is the result of an unbalanced force?
Balanced forces.
What are forces that are equal in size, but opposite in direction?
Work is measured in the unit.
What are joules?
The starting point used to determine location.
What is reference point?
Speed and direction.
What is velocity?
Balanced forces.
What are forces that are equal in size but opposite in direction?
Static friction
What is the force you must overcome to start an object moving?
Transfers energy.
What is work?
How constant speed is shown on a speed-time graph.
What is a horizontal line?
Unit of measurement for distance.
What are meters?
The unit of measurement of force.
What is a Newton?
Mass times velocity.
What is momentum?
The rate at which work is done.
What is power?