Forces, Friction, and Gravity

Front

What happens to the gravitational force as mass increases?

Back

It increases.

Front

If you push on a tree with 20 N of force and it doesn't move, how much force is the tree pushing back on you?

Back

20 N.

Front

What is the force of gravity acting on an object called?

Back

Weight.

Front

In the presence of unbalanced forces, in which direction will the object move?

Back

In the direction of the larger force.

Front

How do you calculate net force when forces are acting in opposite directions?

Back

The forces are subtracted.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object.

Front

What are the two main types of friction?

Back

Static friction and kinetic friction.

Front

What is the effect of increasing surface roughness on friction?

Back

It increases friction.

Front

What is the formula for calculating weight?

Back

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

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².