Physics: Acceleration, Velocity, and Displacement

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is acceleration?

The rate of change of velocity

What is displacement?

Distance between two measurements with direction

What is the difference between average velocity and average speed?

Average speed is how fast something moves, while average velocity includes both speed and direction.

If a car accelerates from 4 m/s to 8 m/s, what is the change in velocity?

4 m/s Signup and view all the answers

A car travels a distance of 70 km in 2 hours. What is the average speed?

35 km/h Signup and view all the answers

What is the velocity of a brick after 4 seconds if dropped?

-40 m/s Signup and view all the answers

How far will a person walk at a speed of 1.5 meters/second in 4 minutes?

360 meters Signup and view all the answers

An aircraft accelerates at a rate of 8 m/s² for 400 meters from rest. How much time does this take?

10 seconds Signup and view all the answers

What is the average speed of a runner who finishes a 100-meter dash in 8 seconds?

12.5 m/s Signup and view all the answers

How fast does a car go at the end of accelerating from rest at 4 m/s² over 200 m?

40 m/s Signup and view all the answers

What is the acceleration of a rocket traveling upward that reaches 120 m/s after 8 seconds?

15 m/s² Signup and view all the answers

Can displacement be negative?

True Signup and view all the answers

What is the average speed if an object travels 90 meters in 9 seconds?

10 m/s Signup and view all the answers

What is the total distance if an object moves 5 meters to the right and 3 meters to the left?

8 meters Signup and view all the answers

What is the acceleration of a car travelling at 6 m/s when it stops after 100 meters?

-0.18 m/s² Signup and view all the answers

What is the velocity of a car moving to the right at 20 m/s that accelerates to the right at 3 m/s² for 14 meters?

22 m/s Signup and view all the answers

If two boats travel in opposite directions at 10 km/h, what will be the same?

Velocity Signup and view all the answers

Study Notes

Acceleration

Rate of change of velocity
Change in acceleration: Vf - Vi (Final velocity - Initial velocity)
Formula: Vf -- Vi / t (Final velocity - Initial velocity over time)

Velocity

How fast something moves
Change in velocity: Vf -- Vi (Final velocity - Initial velocity)

Displacement

Distance with a direction
Formula: Velocity x Time
Measured in meters (m)

Speed

How fast something moves without direction
Measured in m/s
Formula: Total distance / Total time
Average speed does not require a conversion to m/s
Average speed is measured in m/s
Time is measured in seconds (s)

Distance

How far something moves
Formula: Speed x Time
Measured in meters (m)

Formulas

Distance = Velocity x Time
Acceleration = Vf -- Vi / Time
Average speed = Total distance / Total time
Displacement = Velocity x Time

Summary of Conversions

Distance: m
Speed: m/s
Velocity: m/s
Acceleration = m/s2
Time = s

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers fundamental concepts of acceleration, velocity, speed, displacement, and distance in physics. Learn to apply the formulas for calculating these quantities and understand their units of measurement. Perfect for students preparing for their physics exams.