Unit 3 Force and Motion VOCABULARY REVIEW (20 words)

Front

What is the rate of change of velocity per unit of time?

Back

Acceleration

Front

What do we call forces acting on an object that are equal but in opposite directions and cancel each other out?

Back

Balanced force

Front

What is the force that opposes motion between two surfaces that are in contact?

Back

Friction

Front

What is the resistance to an object’s motion when it slides over a surface?

Back

Sliding friction

Front

What is the formula for calculating the weight of an object due to gravity?

Back

Weight (force) = mass x acceleration due to gravity (F = m x 9.8 m/s²)