What is the variable of friction?

Static friction is subtle because the static friction force is variable and depends on the external forces acting on an object. That is, fs ≤ μs N, while (fs)max = μs N. In general, μs ≥ μk. It is harder to move a stationary object than it is to keep a moving object in motion.

What is a manipulated variable for kids?

A manipulated variable is the independent variable in an experiment. It’s called “manipulated” because it’s the one you can change. In other words, you can decide ahead of time to increase it or decrease it.

What is the independent variable for friction?

The independent variable is the height of the ramp (its gradient). The dependent variable is the force needed to pull the mass down the ramp. Controlled variables include using the same mass and ramp surface.

What is the definition of a manipulated variable?

The manipulated variable is something that is changed on purpose in an experiment. All other variables are carefully monitored during the experiment. The responding variable is measured to see if changing the manipulated variable causes something to happen.

Which is an example of friction in action?

You use an eraser to erase the mistake. Another example of friction in action! Friction between the eraser and the paper helps to rub out those pesky spelling mistakes. To review, friction is a special kind of force that slows down or stops motion. It works against the direction of a moving object, and it can generate heat.

What happens when friction is applied to a machine?

Friction can also cause problems. When two parts of a machine rub against each other they can cause damage, and they lose energy in the form of heat. Using lubricants, such as oil, can reduce friction.

What does friction mean in terms of Science?

Introduction. Friction is a force that acts between two objects that are in contact with one another. It slows or stops movement between the two surfaces that are touching.

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