OST Physical Science Questions

Front

What are the two ends of a magnet called?

Back

North and South

Front

What is a balanced force?

Back

Forces that are exerted on an object which are equal, resulting in no change in motion.

Front

What is a superconductor?

Back

A material that can repel a magnet, allowing it to hover above its surface.

Front

What happens to elastic potential energy when a spring is compressed?

Back

The elastic potential energy of the spring increases.

Front

What is the direction of the net force when a magnet hovers above a superconductor?

Back

The direction of the net force is up.

Front

What is the gravitational force acting on a hovering magnet?

Back

The gravitational force is still present but is balanced by the magnetic force.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces do.

Front

What is the principle of magnetic levitation?

Back

It occurs when the magnetic force equals the weight of the object, allowing it to hover.

Front

How does the elastic potential energy change when a spring is stretched?

Back

The elastic potential energy of the spring increases.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate in the direction of the net force.