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Work of friction
The forces of friction, which oppose displacement, also carry out work when a body is moving. The work of friction is converted into heat. The greater the force of friction, the more force must be exerted to move the body. Verify how friction affects the displacement of some blocks.
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The mechanical equivalent of heat
The educational resource shows an interactive animation about the mechanical equivalent of heat.
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Latent heat
The educational resource shows an interactive animation about the latent heat concept: the energy needed to produce a change of phase per unit mass is known as latent heat.
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Forces do work
Forces can carry out work. The work done by a force is different if it has the same direction and orientation as the displacement, or if its direction is different.
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