Speed and Velocity flashcard

Front

What is speed?

Back

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

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It is a vector quantity, meaning it has both magnitude and direction.

Front

What is the formula to calculate speed?

Back

S = d/t, where S is speed, d is distance, and t is time.

Front

If a car travels 100 km in 2 hours, what is its average speed?

Back

50 km/h (calculated using S = d/t).

Front

What two measurements are necessary for calculating speed?

Back

Distance and time.

Front

What is the average speed of a person who swims 105m in 70s?

Back

1.5 m/s (calculated using S = d/t).

Front

What is a reference point?

Back

A reference point is a stationary object or location used to determine the position or motion of another object.

Front

How does acceleration relate to speed?

Back

Acceleration is the rate of change of speed over time. It indicates how quickly an object is speeding up or slowing down.

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 units are commonly used to measure speed?

Back

Common units for speed include kilometers per hour (km/h) and meters per second (m/s).