Flashcards in Science Chapter 8 Deck (18)

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## Force

### A push or pull exerted on an object.

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## Newton

### A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second.

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## Net force

### The overall force on an object when all the individual forces acting on it are added together.

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## Friction

### The force that two surfaces exert on each other when they rub against each other

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## Static Friction

### Friction that acts between objects that are not moving.

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## Fluid Friction

### Friction that occurs as an object moves through a fluid.

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## Rolling friction

### Friction that occurs when an object rolls over a surface.

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## Gravity

### The attractive force between objects; the force that moves objects downhill.

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## Mass

### A measure of how much matter is in an object.

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## Weight

### A measure of the force of gravity acting on an object.

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## Inertia

### The tendency of an object to resist a change in motion.

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## Momentum

### The product of an object’s mass and velocity.

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## Law of conservation of momentum

### The rule that in the absence of outside forces the total momentum of objects that interact does not change.

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## Free fall

### The motion of a falling object when the only force acting on it is gravity.

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## Satellite

### Any object that orbits around another object in space.

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## Centripetal force

### A force that causes an object to move in a circle.

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## Buoyant Force

### The upward force exerted by a fluid on a submerged object.

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