Forces and Motion

Front

What are forces?

Back

Forces are pushes or pulls that can cause an object to move, stop, or change direction.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are unequal in size and may or may not be opposite in direction, causing a change in motion.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is speed?

Back

Speed is the rate at which an object moves, describing how fast it is going.

Front

What is velocity?

Back

Velocity is the speed of an object in a particular direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces in contact.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward the center of the Earth.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.