Physical Science Fall Semester Review

Front

What is a vector?

Back

A vector is a quantity that has both magnitude and direction, such as velocity or force.

Front

What happens to the pitch of a sound as it approaches an observer?

Back

The pitch of the sound increases as it gets closer to the observer.

Front

What materials are conductors typically made of?

Back

Conductors are typically made of metals, which allow electricity to flow through them.

Front

What is the difference between velocity and speed?

Back

Velocity is a vector quantity that includes both speed and direction, while speed is a scalar quantity that only measures how fast an object is moving.

Front

What is the relationship between force and acceleration?

Back

According to Newton's second law, if you increase the force on an object, its acceleration also increases.

Front

What is a scalar?

Back

A scalar is a quantity that has only magnitude and no direction, such as temperature or mass.

Front

What is the formula for calculating acceleration?

Back

Acceleration is calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electricity to flow easily, while insulators resist the flow of electricity.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by a net external force.