Gravational and Electric Forces

Front

What are the three ways to give an object a static charge?

Back

Friction, conduction, and induction.

Front

What happens when two pieces of cellophane tape are ripped off a table and brought together?

Back

The tape is charged by friction and has an induced opposite charge, causing attraction.

Front

What is the fundamental law of gravitation proposed by Sir Isaac Newton?

Back

It states that there is a universal force of attraction between any two bodies.

Front

What force causes an apple to fall to the ground?

Back

Gravity.

Front

How do planets exert force on the stars they orbit?

Back

Planets exert a gravitational pull on the stars they orbit.

Front

What is the relationship between gravitational force and weight?

Back

Gravitational force gives us weight on Earth.

Front

What is the effect of a negatively charged object on positively charged objects in contact?

Back

It can induce a redistribution of charges, causing attraction.

Front

What is the difference between gravitational force and friction?

Back

Gravitational force is a pull between all objects, while friction is a resistance force between surfaces.

Front

What is an example of gravitational force in everyday life?

Back

The force that causes a rock to fall when thrown off a cliff.

Front

What is the significance of the gravitational pull of a star on its orbiting planets?

Back

It keeps the planets in their orbits.