Friction & Gravity

Front

What type of friction slows down a skydiver when they release their parachute?

Back

Fluid friction.

Front

What is the attractive force between objects called?

Back

Gravity.

Front

What is the acceleration due to gravity when a skydiver jumps out of a plane?

Back

9.8 m/s².

Front

What is the force that two surfaces exert on each other when they rub against each other?

Back

Friction.

Front

How does the force of friction change as surfaces push harder against each other?

Back

The force of friction increases.

Front

What is the formula for calculating gravitational force between two objects?

Back

F = G * (m1 * m2) / r².

Front

What is static friction?

Back

The friction that prevents two surfaces from sliding past each other.

Front

What is sliding friction?

Back

The friction that occurs when two surfaces slide against each other.

Front

What is rolling friction?

Back

The friction that occurs when an object rolls over a surface.

Front

What factors affect the amount of friction between two surfaces?

Back

Surface texture, weight of the object, and the materials involved.