AST201H1 Chapter : AST— Jan 31 Lecture + Chapter Notes

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29 Feb 2012

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How do astronomers think Jupiter generates its internal heat?

A) Radioactive decay

B) Internal friction due to its high friction rate

C) Chemical processes

D) Nuclear fusion in the core.

E) By contracting, changing gravitational potential energy into thermal energy.

The toy on a spring illustrated energy conversion among what different forms?

a. Gravitational potential energy, kinetic energy, and elastic potential energy.

b. Gravitational potential energy, kinetic energy, and thermal energy.

c. Kinetic energy, elastic potential energy, and thermal energy.

d. Kinetic energy and elastic potential energy.

e. Gravitational potential energy and thermal energy

The energy that an object has due to its motion is called

a. gravitational potential energy.

b. elastic potential energy.

c. kinetic energy.

d. thermal energy.

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