Front

What role did physics play in the story of Homer and his friends?

Back

Physics helped Homer and his friends locate the missing rocket and prove that they did not start the fire.

Front

To whom was the last rocket dedicated?

Back

The last rocket was dedicated to Ms. Riley, Homer's parents, and the two men who helped him.

Front

Who condensed all rocket science into three scientific laws?

Back

Sir Isaac Newton condensed all rocket science into three scientific laws.

Front

What is the force that attracts an object toward the center of the earth?

Back

Gravity is the force that attracts an object toward the center of the earth.

Front

What best describes a liquid rocket engine?

Back

A liquid rocket engine uses liquid fuel and a separate oxidizer.

Front

What is the first law of motion proposed by Sir Isaac Newton?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is thrust in rocket science?

Back

Thrust is the force that propels a rocket forward, generated by expelling gas out of the engine.

Front

What is the principle of action and reaction?

Back

For every action, there is an equal and opposite reaction, as stated in Newton's third law of motion.