The Nature of Force/Friction and Gravity

Front

What type of friction do the wheels on a moving skateboard experience?

Back

Rolling Friction is the resistance that occurs when an object rolls over a surface.

Front

What is the unit of measurement for force?

Back

Force is measured in newtons.

Front

What happens to gravitational force as the distance between two objects increases?

Back

Gravitational force decreases as the distance between two objects increases.

Front

What is the relationship between air resistance and gravity when an object is falling but not accelerating?

Back

Air resistance is equal to gravity when an object is falling at a constant speed.

Front

What are the four types of friction?

Back

The four types of friction are: 1. Static Friction, 2. Sliding Friction, 3. Rolling Friction, 4. Fluid Friction.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving.

Front

What is sliding friction?

Back

Sliding friction is the resistance encountered when two surfaces slide against each other.

Front

What is fluid friction?

Back

Fluid friction is the resistance experienced by an object moving through a fluid (liquid or gas).

Front

How does mass affect gravitational force?

Back

Gravitational force increases with the mass of the objects involved.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravitational acceleration (W = m × g).