Category 2 Force and Motion

Front

What is the formula to calculate force?

Back

Force = mass x acceleration (F = m x a)

Front

What happens to an object when balanced forces act on it?

Back

It stays still or continues moving at a constant speed.

Front

What is the unit of force?

Back

Newton (N)

Front

How do you calculate speed?

Back

Speed = distance / time

Front

What is kinetic energy?

Back

The energy an object has due to its motion.

Front

Where is maximum kinetic energy found on a roller coaster?

Back

At the bottom of a big hill.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

As mass increases, acceleration decreases if the force is constant.

Front

What is the effect of unbalanced forces on an object?

Back

It causes the object to accelerate in the direction of the net force.

Front

What is the difference between speed and velocity?

Back

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