Understanding Motion and Speed

What is the scientific definition of motion?

• The speed at which an object moves

• Any change in position of an object

• The direction in which an object moves

• The acceleration of an object

How does the frame of reference affect the perception of motion?

• It changes the direction of the object's motion

• It does not affect the perception of motion

• It determines whether an object is in motion or not

• It only affects the speed of the object

What is instantaneous speed?

• The speed of an object in a specific direction

• The speed of an object at a specific moment

• The speed of an object over a long period

• The average speed of an object

How is average speed calculated?

• By multiplying distance and time

• By measuring the speed at a specific moment

• By dividing total distance by total time

• By adding instantaneous speeds

What is the formula for calculating speed?

• Speed = Distance / Time

• Speed = Time x Distance

• Speed = Distance x Time

• Speed = Time / Distance

What does a flat line on a distance-time graph indicate?

• The object is accelerating

• The object is stationary

• The object is moving backward

• The object is moving at a constant speed

What is velocity?

• The speed of an object

• The direction of an object

• The acceleration of an object

• The speed and direction of an object

How is velocity different from speed?

• Velocity is measured in different units than speed

• Velocity is a scalar quantity, speed is not

• Velocity is always greater than speed

• Velocity includes direction, speed does not

What is a vector quantity?

• A measurement that includes speed and acceleration

• A measurement that includes only direction

• A measurement that includes both size and direction

• A measurement that includes only size

Which of the following is an example of velocity?

• 10 m/s^2

• 10 m/s North

• 10 m/s^2 East

• 10 m/s