Ch.7.2 - Forces and Motion

Is a force that opposes the motion of one object moving past another.

• action force

• reaction force

• friction

• gravity

Is the force that attracts objects to each other and to the center of earth.

• action force

• reaction force

• friction

• gravity

Is a push or a pull that might change the shape of an object

• force

• friction

• gravity

• action force

The unit for force is...

• meters per second

• newton

• (m/s)/s

• Kg . m/s

Forces that have the same strength and act in opposite direction...

• action force

• reaction force

• balanced forces

• unbalanced forces

Force that change the speed, direction, or position of an object

• friction

• action forces

• balanced forces

• unbalanced forces

Law that says "an unbalanced force on an object is equal to its mass times its acceleration".

• newton's first law

• newton's second law

• newton's third law

• balance forces

Is also called the law of inertia, it says an object will not change its motion unless it's forced to do so.

• newton's first law

• newton's second law

• newton's third law

• balance forces

This law states that for every action force, there is an equal and opposite reaction force.

• newton's first law

• newton's second law

• newton's third law

• balance forces

Newton's Third law states that action and reaction forces are ___________ .

• forces in the same direction

• unequal forces

• balanced forces

• unbalanced forces