P3-Physical Science Semester Final

Front

What is density in the context of rocket propellants?

Back

Density is the mass of a substance divided by its volume. In rocket propellants, higher density can lead to more thrust.

Front

What energy transformation occurs when a rocket lifts off?

Back

The transformation is from chemical potential energy to kinetic and thermal energy.

Front

What happens to unstable molecules in a chemical?

Back

Unstable molecules tend to break apart easily, leading to potential reactions.

Front

What does Newton's Third Law state?

Back

For every action, there is an equal and opposite reaction.

Front

What is net force?

Back

Net force is the total force acting on an object, taking into account all individual forces and their directions.

Front

How do you calculate net force when two forces act in opposite directions?

Back

Subtract the smaller force from the larger force and indicate the direction of the larger force.

Front

What is thrust in the context of rockets?

Back

Thrust is the force that propels a rocket upward, generated by the expulsion of gas from the rocket's engines.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the role of chemical potential energy in rockets?

Back

Chemical potential energy is stored in the propellants and is converted into kinetic and thermal energy during combustion.