Distance/Displacement/Speed/Velocity

Front

What is the definition of distance in physics?

Back

Distance is a scalar quantity that refers to the total length of the path traveled by an object, regardless of direction.

Front

What is the definition of displacement?

Back

Displacement is a vector quantity that refers to the change in position of an object, measured as the shortest straight line from the starting point to the final position, including direction.

Front

How do speed and velocity differ?

Back

Speed is a scalar quantity that measures how fast an object is moving, while velocity is a vector quantity that measures the rate of change of displacement, including direction.

Front

What is the formula for calculating average speed?

Back

Average speed is calculated using the formula: Average Speed = Total Distance / Total Time.

Front

If a person walks 3 km north and then 4 km east, what is their displacement?

Back

The displacement can be calculated using the Pythagorean theorem: Displacement = √(3² + 4²) = 5 km at an angle of 53.13° from the north.

Front

What is the unit of measurement for speed in the International System of Units (SI)?

Back

The SI unit for speed is meters per second (m/s).

Front

How can you determine the total distance traveled from a distance-time graph?

Back

The total distance traveled can be determined by calculating the area under the curve of the distance-time graph.

Front

What does a horizontal line on a distance-time graph represent?

Back

A horizontal line on a distance-time graph represents that the object is at rest, meaning there is no change in distance over time.

Front

What is the average speed of a horse that travels 20 m in 5 seconds?

Back

The average speed is calculated as Average Speed = Total Distance / Total Time = 20 m / 5 s = 4 m/s.

Front

What is the significance of direction in velocity?

Back

Direction is significant in velocity because it indicates the path along which an object is moving, making velocity a vector quantity.