Force and Motion

Front

What is friction?

Back

Friction is the force that opposes motion between two surfaces that are in contact with one another.

Front

What are balanced forces?

Back

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

Front

How does a strong blowing force affect the distance a feather travels?

Back

A strong blowing force causes the feather to travel a greater distance.

Front

What happens when a runner speeds up?

Back

The runner increases their speed, moving faster over the same distance.

Front

Why does a car travel easier on a concrete road than on a dirt road?

Back

The dirt road has more friction because the surface is not smooth.

Front

What is motion?

Back

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

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is an example of an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to move.

Front

What is the relationship between force and motion?

Back

Force is needed to change the motion of an object; it can start, stop, or change the direction of the object's movement.

Front

What is an example of friction in everyday life?

Back

When you rub your hands together, the heat generated is due to friction.