Force & Net Force

Front

What is the definition of net force?

Back

Net force is the vector sum of all the individual forces acting on an object. It determines the object's acceleration and direction of motion.

Front

How do you calculate net force when multiple forces are acting in the same direction?

Back

To calculate net force when multiple forces are acting in the same direction, you simply add their magnitudes together.

Front

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

Back

To calculate net force when multiple forces are acting in opposite directions, subtract the magnitude of the smaller force from the larger force.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces result in no change in motion (net force = 0), while unbalanced forces cause an object to accelerate in the direction of the net force.

Front

What happens to an object's motion when the net force acting on it is zero?

Back

When the net force acting on an object is zero, the object remains at rest or continues to move at a constant velocity.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

At which point on a roller coaster does the car have the greatest potential energy?

Back

The car has the greatest potential energy at the highest point of the track.

Front

What is the relationship between potential energy and kinetic energy on a roller coaster?

Back

As a roller coaster descends, potential energy is converted into kinetic energy, increasing the car's speed.

Front

How does the direction of net force affect an object's motion?

Back

The direction of net force determines the direction in which the object will accelerate.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.