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Questions and Answers
What is the equation for Hooke's Law?
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)?
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?
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?
What is the definition of Velocity?
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What type of energy is stored in deformed objects, such as a stretched spring?
What type of energy is stored in deformed objects, such as a stretched spring?
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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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