Forces and Motion

Front

What type of friction opposes the motion of an object through a fluid?

Back

Fluid friction.

Front

What is the term for a push or pull that can cause an object to move or change its speed or direction?

Back

Force.

Front

What is the unit of force that causes a 1 kilogram mass to accelerate at a rate of 1 meter per second squared?

Back

Newton.

Front

What are the two types of forces that can both attract and repel?

Back

Electric and magnetic forces.

Front

What is the term for the force of gravity acting on an object?

Back

Weight.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravitational acceleration (W = mg).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

What is the difference between mass and weight?

Back

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

Front

What is the principle of inertia?

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 relationship between force, mass, and acceleration as described by Newton's second law?

Back

F = ma (Force equals mass times acceleration).