Physical Science - 8th Grade Science

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Question

Select the type of force that is being described:

A student pushing the teacher's desk across the room.

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Answer

There are many types of forces, but our answer choices include four types. In order to answer this question correctly, we need to be able to decipher between them.

Applied force is a force that is applied by a person to an object.

Gravity force is also known as the weight of the object. It's the force that allows a large object to attract another object towards itself.

Normal force is also known as supportive force. It is the force exerted upon an object that is in contact with another object, one object holds the other up.

Friction force is the force exerted by a surface as an object tries to moves across the surface.

Let's think about the scenario from the question. We have a student pushing a desk, which is an object, across the room. The student would have to apply some force to get the desk to move. Looking at the types of forces above, applied force fits this scenario best.

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