Science 1 Speed, Velocity, Acceleration (Unit 2)

Front

What is the definition of 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).

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction, expressed in units such as meters per second (m/s) or kilometers per hour (km/h) with a directional component.

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 does a negative velocity indicate?

Back

A negative velocity indicates that the object is moving in the opposite direction to the defined positive direction.

Front

What does a negative acceleration indicate?

Back

A negative acceleration indicates that the object is slowing down.

Front

How is average speed calculated?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is the formula for acceleration?

Back

The formula for acceleration is a = (final velocity - initial velocity) / 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 it mean if an object's velocity is constant?

Back

If an object's velocity is constant, it means that the object is moving at a steady speed in a straight line without changing direction.

Front

What is the significance of the slope of a distance-time graph?

Back

The slope of a distance-time graph represents the speed of the object; a steeper slope indicates a higher speed.