Understanding Motion Concepts

What is the difference between distance and displacement?

• Distance and displacement are the same concept.

• Distance is the total path length traveled; displacement is the shortest straight-line distance with direction.

• Displacement measures the total time taken to travel.

• Distance is always greater than displacement.

Define speed and provide its formula.

• Speed = Distance x Time

• Speed = Distance + Time

• Speed = Distance / Time

• Speed = Time / Distance

What is velocity and how does it differ from speed?

• Velocity is a vector quantity that includes direction, while speed is a scalar quantity that only measures magnitude.

• Velocity measures distance over time, while speed measures time over distance.

• Velocity is the same as speed but only measured in kilometers per hour.

• Speed is a vector quantity that includes direction, while velocity is a scalar quantity.

If a car travels 100 km north and then 100 km south, what is its displacement?

• 50 km

• 0 km

• 100 km

• 200 km

How can you calculate average speed?

• Average Speed = Total Time / Total Distance

• Average Speed = Distance x Time

• Average Speed = Total Distance + Total Time

• Average Speed = Total Distance / Total Time

Explain the concept of instantaneous velocity.

• Instantaneous velocity is the speed of an object regardless of direction.

• Instantaneous velocity is the average velocity over a time interval.

• Instantaneous velocity is the velocity of an object at a specific point in time.

• Instantaneous velocity is the total distance traveled divided by total time.

If a person walks in a circle of radius 10 m, what is the distance covered after one complete round?

• 50 meters

• 31.42 meters

• 62.83 meters

• 78.54 meters

What is the significance of direction in velocity?

• Velocity is only concerned with speed, not direction.

• Direction is irrelevant to velocity calculations.

• Direction affects only distance, not velocity.

• Direction is significant in velocity because it defines the path of motion and differentiates between objects moving at the same speed.

Can an object have a high speed but low velocity? Explain with an example.

• High speed always means high velocity in physics.

• An object can only have low speed and high velocity.

• An object cannot have high speed and low velocity simultaneously.

• Yes, an object can have high speed but low velocity.

What are the units of speed and velocity?

• The units of speed and velocity are both meters per second (m/s).

• Feet per second (ft/s)

• Miles per hour (mph)

• Kilometers per hour (km/h)