Energy in the Solar System Flashcard

Front

Which point has greatest kinetic energy? Options: A, B, C, none

Back

C

Front

Which force is primarily responsible for keeping planets in orbit around the sun?

Back

Gravitational force

Front

What is the main source of energy in the sun's core?

Back

Nuclear fusion

Front

How does the sun's energy primarily reach Earth?

Back

Electromagnetic radiation

Front

An apple falling from a tree is an example of the force of ____________.

Back

Gravity

Front

What happens to a planet's velocity as it moves closer to the sun in its orbit?

Back

It increases

Front

Which of the following is NOT a noncontact force? Gravity, Magnetism, Electrical force, Friction

Back

Friction

Front

Which bowling ball has LESS kinetic energy?

Back

8 m/s

Front

How does kinetic energy change if an object's mass stays the same but its velocity doubles?

Back

It quadruples

Front

What protects Earth from most of the sun's charged particles?

Back

The magnetosphere