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Questions and Answers
What is the formula for calculating work done?
What is the formula for calculating work done?
- Work = Force × Distance
- Work = Force × Distance × cos(θ) (correct)
- Work = Force × Distance × sin(θ)
- Work = Force ÷ Distance
Which of the following is a unit of power?
Which of the following is a unit of power?
- Joule
- Watt (correct)
- Pascal
- Newton
In the context of energy, what does the term 'kinetic' refer to?
In the context of energy, what does the term 'kinetic' refer to?
- Energy associated with motion (correct)
- Energy stored in chemical bonds
- Energy stored in an object due to its position
- Energy stored in the nucleus of an atom
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Study Notes
Work and Energy
- The formula for calculating work done is: Work = Force x Distance (W = F x d)
Units of Power
- A unit of power is the Watt (W)
- 1 Watt is equal to 1 Joule per second (1 W = 1 J/s)
- Other units of power include Horsepower (hp) and Kilowatt (kW)
Kinetic Energy
- In the context of energy, the term 'kinetic' refers to the energy of motion
- Kinetic energy is the energy an object possesses due to its motion
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