Physics Unit 1 Flashcard Review

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction. Examples include temperature, mass, and speed.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction. Examples include velocity, force, and displacement.

Front

What does it mean for an object to move at a constant speed of 10 m/s?

Back

It means that the object travels a distance of 10 meters every second.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken. Formula: Speed = Distance / Time.

Front

What is the formula for calculating average velocity?

Back

Average velocity is calculated by dividing the total displacement by the total time taken. Formula: Average Velocity = Displacement / Time.

Front

What is displacement?

Back

Displacement is a vector quantity that refers to the change in position of an object, measured as the shortest distance from the initial to the final position.

Front

What is the unit of speed in the International System of Units (SI)?

Back

The SI unit of speed is meters per second (m/s).

Front

What is the significance of direction in vector quantities?

Back

Direction is crucial in vector quantities because it determines the vector's orientation in space, affecting how vectors can be added or compared.

Front

What is the relationship between distance and displacement?

Back

Distance is a scalar quantity that measures the total path length traveled, while displacement is a vector quantity that measures the shortest straight-line distance from the initial to the final position.