Speed, Velocity, and Acceleration

Front

What is speed?

Back

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

Tags

NGSS.MS-PS3-1

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, expressed in units like meters per second (m/s) with a directional component.

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.HS-PS2-1

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Tags

NGSS.MS-PS3-1

Front

What is the formula for acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Tags

NGSS.HS-PS2-1

Front

If a car travels 100 meters in 5 seconds, what is its speed?

Back

20 m/s.

Tags

NGSS.MS-PS3-1

Front

What two things must you know to determine speed?

Back

You must know distance and time.

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).

Front

If a cyclist increases their speed from 10 km/h to 15 km/h, what type of motion is this?

Back

This is an example of positive acceleration.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What happens to the acceleration of an object if it is moving at a constant speed?

Back

The acceleration is zero if the speed is constant.