Podcast
Questions and Answers
What is the formula for Kinetic Energy?
What is the formula for Kinetic Energy?
- Mass (kg) X Specific Heat Capacity (J/kg'C) X Temperature Change ('C)
- Mass (kg) X Gravitational Field Strength (N/kg) X Height (m)
- 0.5 X Mass (kg) X Velocity^2 (m/s) (correct)
- 0.5 X Spring Constant X Extension^2
What does the formula Mass (kg) X Specific Heat Capacity (J/kg'C) X Temperature Change ('C) represent?
What does the formula Mass (kg) X Specific Heat Capacity (J/kg'C) X Temperature Change ('C) represent?
- Power
- Gravitational Potential Energy
- Thermal Energy (correct)
- Kinetic Energy
What is the formula for Gravitational Potential Energy?
What is the formula for Gravitational Potential Energy?
Mass (kg) X Gravitational Field Strength (N/kg) X Height (m)
What is the formula for Elastic Potential Energy?
What is the formula for Elastic Potential Energy?
What is the definition of Power (W)?
What is the definition of Power (W)?
How is Energy Efficiency (%) calculated?
How is Energy Efficiency (%) calculated?
Study Notes
Kinetic Energy
- Calculated using the formula: 0.5 × Mass (kg) × Velocity² (m/s).
- Represents the energy an object possesses due to its motion.
Thermal Energy
- Determined by the formula: Mass (kg) × Specific Heat Capacity (J/kg°C) × Temperature Change (°C).
- Indicates the energy associated with the temperature change of a substance.
Gravitational Potential Energy
- Formula: Mass (kg) × Gravitational Field Strength (N/kg) × Height (m).
- Describes the energy stored in an object due to its position above the ground.
Elastic Potential Energy
- Calculated using: 0.5 × Spring Constant × Extension².
- Reflects the energy stored in a stretched or compressed spring.
Power
- Defined as Energy Transferred divided by Time (s).
- Measures the rate of energy transfer or conversion.
Energy Efficiency
- Expressed as: (Useful Energy (J) / Total Energy (J)) × 100.
- Indicates the percentage of energy that is converted into useful work, highlighting losses in energy conversion processes.
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Description
Test your understanding of key physics energy equations with these flashcards. Each card provides a definition of different energy types, including kinetic and gravitational potential energy. Perfect for students looking to reinforce their knowledge of energy concepts in physics.
