NC Check-ins Physical Science

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance ÷ Time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, measured in meters per second squared (m/s²).

Front

What are balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances.

Front

What is a physical change?

Back

A physical change is a change in the form or appearance of a substance without altering its chemical composition.

Front

What does a distance vs. time graph show?

Back

A distance vs. time graph shows how far an object has traveled over a specific period of time.

Front

What does a steeper line on a distance vs. time graph indicate?

Back

A steeper line indicates a faster speed.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).