Forces

Front

What is the force that opposes the motion of a rolling ball?

Back

Friction

Front

What is the definition of inertia?

Back

An object's tendency to resist change in motion.

Front

Who is the SI unit of force named after?

Back

Isaac Newton

Front

If two forces of 23 N are applied in the same direction, what is the net force?

Back

46 N to the right.

Front

What does Newton's Second Law state?

Back

F = m × a

Front

What is the formula for calculating force?

Back

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

Front

What is the relationship between mass and acceleration in Newton's Second Law?

Back

Acceleration is directly proportional to the net force and inversely proportional to the mass.

Front

What is the effect of friction on a moving object?

Back

Friction slows down or stops the object.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is an example of inertia in everyday life?

Back

A passenger lurching forward in a car when it suddenly stops.