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Mini-Quiz: Gravity Equations for Falling Objects

by Ron Kurtus (updated 29 May 2023)

Take this Mini-Quiz to check your understanding of the lesson material.

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1. If you know how long an object has been falling, what information can you calculate?

The velocity and displacement traveled for that time period

Which version of g to use

The time it has been falling

2. How far has a falling object traveled when it reaches a velocity of 8 ft/s?

32 ft

8 ft

1 ft

3. What is the equation for the time it takes to fall a given displacement?

v = √(2gy)

t = √(2y/g)

t = v/g

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

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Gravity is an approximation of gravitation

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Resources and references

Ron Kurtus' Credentials

Websites

Falling Bodies - Physics Hypertextbook

Equations for a falling body - Wikipedia

Gravity Calculations - Earth - Calculator

Kinematic Equations and Free Fall - Physics Classroom

Gravity Resources

Books

(Notice: The School for Champions may earn commissions from book purchases)

Top-rated books on Simple Gravity Science

Top-rated books on Advanced Gravity Physics

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Students and researchers

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Where are you now?

School for Champions

Gravity topics

Mini-Quiz: Gravity Equations for Falling Objects

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Gravity and Gravitation

• Overview of Gravity and Gravitation
• Gravity Resources

Gravity topics

• Overview of the Force of Gravity

Preliminaries

• Using Vectors in Gravity Equations
• Gravity Direction Convention

Basics

• Equivalence Principle of Gravity
• -- Gravity Acceleration is Constant
• -- Gravity on Earth versus on Moon
• Mass, Weight and Gravity
• -- Confusion about Mass and Weight
• Gravity and Horizontal Motion

Derivations of equations

• Gravity Equation Derivations
• Velocity-Time Gravity Equations
• Displacement-Time Gravity Equations
• Displacement-Velocity Gravity Equations

Falling objects

• Equations for Falling Objects
• Velocity Equations for Falling Objects
• Displacement Equations for Falling Objects
• Time Equations for Falling Objects

Projected downward

• Objects Projected Downward
• Downward Velocity Equations
• Downward Displacement Equations
• Downward Time Equations

Projected upward

• Objects Projected Upward
• Upward Velocity Equations
• Upward Displacement Equations
• Upward Time Equations

Gravity and energy

• Overview of Energy from Gravity
• Energy of Falling Objects
• Energy of Objects Projected Downward
• Energy When Projected Upward

Gravity and work

• Work by Gravity
• Work Against Gravity

Effects of gravity

• On Sideways Motion
• On an Artillery Projectile
• On a Rocket Projectile

Gravity applications

• Gravity and Newton's Cannon
• Escape Velocity from Gravity
• Artificial Gravity in Spacecraft
• -- Artificial Gravity Equations
• Center of Gravity

Gravitation

• Gravitation topics
• Overview of Gravitation

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