Review for QSE 2 2024

Front

What does it mean for an object to be balanced?

Back

An object is balanced when the forces acting on it are equal in size and opposite in direction, resulting in no change in motion.

Front

What does it mean for an object to be unbalanced?

Back

An object is unbalanced when the forces acting on it are not equal, causing the object to accelerate in the direction of the net force.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the individual forces are combined.

Front

How do you calculate net force?

Back

To calculate net force, add up all the forces acting in one direction and subtract the forces acting in the opposite direction.

Front

What is Newton's Third Law of Motion?

Back

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

Front

What happens to a balloon rocket when air is released?

Back

The balloon moves in the opposite direction of the released air due to Newton's Third Law.

Front

What type of energy transformation occurs in a circuit with a battery and a buzzer?

Back

Chemical energy is transformed into electrical energy, which is then transformed into sound energy.

Front

What is the role of a battery in a circuit?

Back

A battery provides the electrical energy needed to power the circuit.

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows electricity to flow from the power source to the device and back.

Front

What is the difference between electrical energy and sound energy?

Back

Electrical energy is the energy of moving electrons, while sound energy is the energy carried by sound waves.