Mechanical Energy & Speed

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What is mechanical energy?

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Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy that an object has due to its motion or position.

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What is kinetic energy?

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Kinetic energy is the energy an object has because of its motion. The faster an object moves, the more kinetic energy it has.

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What is potential energy?

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Potential energy is the stored energy in an object due to its position or condition. For example, a ball at the top of a hill has potential energy.

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How does increasing the mass of an object affect its kinetic energy?

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Increasing the mass of an object increases its kinetic energy if its speed remains the same.

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What happens to the speed of a bowling ball when it rolls down a steeper ramp?

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The speed of the bowling ball increases when it rolls down a steeper ramp.

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What is speed?

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Speed is the distance an object travels in a certain amount of time. It tells us how fast something is moving.

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What is the relationship between speed and mechanical energy?

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As speed increases, kinetic energy increases, which is a part of mechanical energy.

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What effect does pushing a swing have on its motion?

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Pushing a swing gives it energy, causing it to move forward.

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What is the formula for kinetic energy?

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The formula for kinetic energy is KE = 1/2 mv², where m is mass and v is speed.

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What is the effect of friction on mechanical energy?

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Friction can reduce mechanical energy by converting it into heat, slowing down moving objects.

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