Forces and Motion

Front

In Newton's first Law of Motion, an object at rest will ___________.

Back

remain at rest.

Front

In the equation f=ma, what does the 'm' stand for?

Back

mass.

Front

What type of force is acting on an airplane taking off?

Back

Unbalanced force.

Front

If an object is stationary (not moving), the forces acting upon it are _____________.

Back

balanced.

Front

True or false: If you change ONLY the direction of an object, you have then changed its velocity.

Back

True.

Front

What is the definition of force?

Back

A push or pull on an object.

Front

What is the formula for calculating force?

Back

f = ma (force = mass × acceleration).

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is the difference between speed and velocity?

Back

Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.