Motion, Speed, and Velocity

Front

What is speed?

Back

Speed is the distance an object travels in a unit of time, typically measured in miles per hour (mph) or kilometers per hour (km/h).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, such as 60 km/h northward.

Front

How do you calculate speed?

Back

Speed = Distance / Time. For example, if a car travels 120 miles in 2 hours, its speed is 120 miles / 2 hours = 60 miles/hour.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

If a car travels 300 miles in 5 hours, what is its speed?

Back

Speed = 300 miles / 5 hours = 60 miles/hour.

Front

What is the formula for calculating velocity?

Back

Velocity = Displacement / Time. Displacement is the shortest distance from the initial to the final position.

Front

What does it mean if an object has a constant speed?

Back

It means the object is moving the same distance in equal intervals of time, without speeding up or slowing down.

Front

What is the unit of speed in the metric system?

Back

The unit of speed in the metric system is meters per second (m/s).

Front

If a runner completes a 400-meter lap in 50 seconds, what is their speed?

Back

Speed = 400 meters / 50 seconds = 8 meters/second.