Forces of Motion

Front

Unit for acceleration?

Back

m/s²

Front

Newton's 3rd Law states that for every action there is an equal and opposite ________.

Back

reaction

Front

A 50 kg skater pushes off from a wall with a force of 200 N. What is the skater’s acceleration?

Back

200 / 50 = 4 m/s²

Front

Which of the following is an example of an unbalanced force? A book resting on the table or A pencil that is knocked to the ground.

Back

A pencil that is knocked to the ground.

Front

When you jump off a small rowing boat onto the shore, the boat moves backward. Which of Newton's laws explains this action?

Back

Newton's Third Law of Motion.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma)

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What does Newton's First Law of Motion state?

Back

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

Front

What is the unit of force?

Back

Newton (N)

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass × gravitational acceleration.