Forces and Motion

An object's change in position relative to a reference point

• Motion

• Displacement

• Speed

• Velocity

The change in position of an object

• Motion

• Displacement

• Speed

• Velocity

The distance traveled by the time interval during which the motion occurred

• Motion

• Displacement

• Speed

• Velocity

The speed of an object in a particular direction

• Motion

• Displacement

• Speed

• Velocity

A system for specifying the precise location of objects in space and time

• Frame of reference

• Average speed

• Instantaneous Speed

• Acceleration

the total distance traveled by the object divided by the elapsed time to cover that distance.

• Frame of reference

• Average speed

• Instantaneous Speed

• Acceleration

the speed of an object at a certain instant of time

• Frame of reference

• Average speed

• Instantaneous Speed

• Acceleration

the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change

• Frame of reference

• Average speed

• Instantaneous Speed

• Acceleration

Electromagnetism, weak interaction, strong interaction, and gravitation

• Fundamental forces

• Contact force

• Field force

• Net force

any force that requires contact to occur.

• Fundamental forces

• Contact force

• Field force

• Net force