Physics Unit 1 Pretest

Front

What is speed?

Back

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

Tags

NGSS.MS-PS3-1

Front

What is the formula for calculating distance?

Back

Distance = Speed × Time.

Front

What is acceleration?

Back

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

Tags

NGSS.MS-PS3-1

Front

How do you calculate average velocity?

Back

Average Velocity = Total Displacement / Total Time.

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

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time, where the slope represents acceleration.

Front

What is the significance of a flat line on a velocity-time graph?

Back

A flat line indicates that the object is moving at a constant velocity (no acceleration).

Front

What does a downward slope on a velocity-time graph indicate?

Back

A downward slope indicates that the object is decelerating (slowing down).

Front

What is the effect of gravity on a falling object?

Back

Gravity causes a falling object to accelerate downward at approximately 9.8 m/s².

Tags

NGSS.MS-PS2-2

Front

If a car travels 90 meters north and then 40 meters south, what is the total displacement?

Back

Total Displacement = 90 m (north) - 40 m (south) = 50 m (north).