9/13Speed, Velocity, Acceleration

Front

What is the definition of speed?

Back

Speed is the distance traveled per unit of time, typically expressed in units such as miles per hour (mph) or meters per second (m/s).

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction, combining both the magnitude of speed and the direction of motion.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can occur due to a change in speed or direction.

Front

How does acceleration differ from velocity?

Back

Acceleration refers to the change in velocity over time, while velocity is the speed of an object in a given direction.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's velocity changes at a constant rate over time.

Front

What is the difference between average speed and instantaneous speed?

Back

Average speed is the total distance traveled divided by the total time taken, while instantaneous speed is the speed of an object at a specific moment in time.

Front

What is the significance of direction in velocity?

Back

Direction is crucial in velocity because it differentiates between objects moving at the same speed but in different directions.

Front

What is a common example of acceleration in everyday life?

Back

A common example of acceleration is a car speeding up as it enters a freeway.

Front

How does gravity affect acceleration?

Back

Gravity causes objects to accelerate towards the Earth at approximately 9.81 m/s², regardless of their mass.