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Mini-Quiz: Energy from Gravity for Objects Projected Upward

by Ron Kurtus (updated 29 May 2023)

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

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1. What happens to the potential energy when an object hits the ground?

It becomes infinity

It does not vary

It becomes zero

2. Why does an object have an inital KE when you project it upward?

It has an initial velocity that causes the KE

No one is certain why that happens

The initial KE helps to compensate a lack of PE

3. What happens at the maximum height when an object is projected upward?

The KE equals the PE

The KE becomes zero and the PE relates to that height

The KE and the PE interchange values

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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Resources and references

Ron Kurtus' Credentials

Websites

Gravity and Potential Energy - University of Alaska

Potential Energy Calculator

Gravity and Energy - Exploring the interplay of gravity and mass-energy

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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Where are you now?

School for Champions

Gravity topics

Mini-Quiz: Energy from Gravity for Objects Projected Upward

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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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