ADV 12/4 Forces

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to accelerate in the direction of the greater force.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

How do you calculate net force?

Back

To calculate net force, add all the forces acting in one direction and subtract the forces acting in the opposite direction.

Front

If a box is pushed with 60 N to the right and 40 N to the left, what is the net force?

Back

The net force is 20 N to the right (60 N - 40 N = 20 N right).

Front

What happens to an object when the net force is zero?

Back

When the net force is zero, the object remains at rest or continues to move at a constant speed in a straight line.

Front

What is the effect of gravity on objects?

Back

Gravity pulls objects toward the center of the Earth, giving them weight and affecting their motion.

Front

If a person lifts a book with a force of 50 N and gravity pulls down with 15 N, what is the net force?

Back

The net force is 35 N upward (50 N - 15 N = 35 N up).

Front

What does it mean if an object is moving at a constant speed?

Back

It means that the object's speed does not change over time, indicating that the forces acting on it are balanced.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can occur due to a change in speed or direction.