Physics Quiz

What is the definition of speed?

• The measure of how far an object moves in a given amount of time.

• The measure of how quickly an object moves in a given amount of time but not the distance it covers.

• The measure of how quickly an object moves or the distance it covers in a given amount of time.

• The measure of how slowly an object moves or the distance it covers in a given amount of time.

Which of the following is the correct formula for speed?

• Speed = Distance + Time

• Speed = Distance/Time

• Speed = Distance x Time

• Speed = Distance - Time

What is the SI unit of speed?

• ft/min

• cm/s

• km/h

• m/s

What is the definition of acceleration?

• The rate at which an object changes its direction over time.

• The rate at which an object changes its position over time.

• The rate at which an object changes its speed over time.

• The rate at which an object changes its velocity over time.

Which of the following is the correct formula for acceleration?

• a = (vf * vi) / t

• a = (vf - vi) / t

• a = (vf - vi) * t

• a = (vf + vi) / t

What is the SI unit of acceleration?

• km/h

• cm/s

• m/s

• m/s²

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

• Acceleration

• No motion

• Constant speed

• Deceleration

What does a positive slope on a speed-time graph represent?

• Zero speed

• Decreasing speed

• Increasing speed

• Constant speed

What is the term for the rate of change of velocity with respect to time?

• Speed

• Acceleration

• Momentum

• Force

Which of the following is the correct formula for calculating average speed?

• Average speed = Total distance / Total time

• Average speed = Total time / Total distance

• Average speed = (Initial speed + Final speed) / 2

• Average speed = Initial speed x Final speed