Physical Science

Front

What is the apparent motion of light poles when riding in a car?

Back

They appear to move backward.

Front

How does elastic potential energy change when an archer fires an arrow?

Back

It increases from Step 1 to Step 2, then decreases to Step 3.

Front

Which bunny will fall fastest if dropped from the same height?

Back

Bunny 1 will fall fastest.

Front

What happens to a compass needle when an electric current runs through a wire?

Back

The compass needle moves because the current creates a magnetic field around the wire.

Front

Which person has the most gravitational potential energy?

Back

A 100kg person who lives on the third floor.

Front

What is gravitational potential energy?

Back

The energy an object possesses due to its position in a gravitational field.

Front

What is elastic potential energy?

Back

The energy stored in elastic materials as the result of their stretching or compressing.

Front

What is the relationship between mass and gravitational potential energy?

Back

Gravitational potential energy increases with mass.

Front

What is the formula for gravitational potential energy?

Back

PE = mgh (where PE is potential energy, m is mass, g is acceleration due to gravity, and h is height).

Front

What is the effect of an electric current on a magnetic compass?

Back

An electric current creates a magnetic field that can influence the compass needle.