Forces

Front

F_g is the abbreviation for...

Back

gravity, force of gravity, gravitational force

Front

If an object with a mass of 20 kg is being pushed with a force of 120 N to the left, and the force of friction acting on it is 20 N, what is its acceleration?

Back

5 m/s² left

Front

As a pelican flies through the air, it flaps its wings, thereby pushing down on the air below. What is the reaction force?

Back

The air pushing back up on the wings of the pelican

Front

Which of the following would have the greatest inertia? A semi, A car, A bike, A Hot Wheels car

Back

A semi

Front

An object in motion stays in motion at a constant velocity, and an object at rest stays at rest, unless acted upon by an ____ ____.

Back

unbalanced force

Front

What is inertia?

Back

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

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Front

What is the formula for calculating force?

Back

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

Front

What is the unit of force?

Back

Newton (N)

Front

What is friction?

Back

A force that opposes the motion of an object.