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Physics Exam Study Guide: Equations and Constants

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Physics Exam Study Guide: Equations and Constants

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Questions and Answers

What is the equation for Hooke's Law?

$F=ma$

$E_k=\frac{1}{2}mv^2$

$E_p=\frac{1}{2}kx^2$

$F=kx$ (correct)

What is the formula for Gravitational Potential Energy (GPE)?

$F=kx$

$E_p=mgh$ (correct)

$E_p=\frac{1}{2}kx^2$

$E_k=\frac{1}{2}mv^2$

What does the Work-Energy Theorem state?

Work done on an object is equal to the change in its kinetic energy. (correct)

Work done on an object is equal to its total energy.

Work done on an object is equal to its elastic potential energy.

Work done on an object is equal to its gravitational potential energy.

What is the definition of Velocity?

<p>Velocity includes both speed and direction.</p> Signup and view all the answers

What type of energy is stored in deformed objects, such as a stretched spring?

<p>Elastic Energy</p> Signup and view all the answers

Study Notes

Hooke's Law

Hooke's Law states that the force required to deform a spring by a distance x is proportional to x, and is mathematically represented as F = -kx, where F is the force and k is the spring constant.

Energy

Gravitational Potential Energy (GPE) is the energy an object possesses due to its position or height, and is calculated using the formula GPE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object.

Work-Energy Theorem

The Work-Energy Theorem states that the net work done on an object is equal to its change in kinetic energy.

Motion

Velocity is the rate of change of an object's position with respect to time, and is a measure of an object's speed in a specific direction.

Elastic Energy

Elastic energy is a type of potential energy stored in deformed objects, such as stretched springs or compressed materials, which can be released when the object returns to its original shape.

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Description

This study guide covers essential physics equations and constants, including Newton's Second Law, Hooke's Law, kinetic and potential energy equations, and important terms like acceleration due to gravity and total energy. Use this guide to prepare for your physics exam.