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PHYSICS > Newtonian Forces > Flashcards

Newtonian Forces Flashcards

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1
Q

What is a scalar?

A

A measurement that has magnitude only.

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2
Q

What is a vector?

A

A measurement that has magnitude and direction, represented by arrows.

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3
Q

What are Contact forces?

A

Forces that happen when objects are touching or in contact.

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4
Q

What are Non-contact forces?

A

Forces that act on an object over distance.

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5
Q

What is the Resultant force?

A

The overall force acting on an object which has the same effect as all the original forces acting together.

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6
Q

What is Elastic deformation?

A

An object that returns to its original shape and size after forces are removed.

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7
Q

What is inelastic deformation?

A

When an object doesn’t return to its original shape and size after forces are removed.

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8
Q

What are examples of a contact force? (3)

A

Friction, Air resistance, Tension.

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9
Q

What are examples of a non-contact force? (3)

A

Gravitational, Electrostatic, Magnetic.

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10
Q

What are examples of a Scalar? (4)

A

Speed, Distance, Temperature, time

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11
Q

What are examples of a vector? (4)

A

Velocity, displacement, force, acceleration

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12
Q

What is weight?

A

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

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13
Q

How to calculate Weight?

A

Weight = mass x gravity

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14
Q

How to calculate force (in a spring)?

A

Force = Spring constant x extension

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15
Q

How to calculate speed?

A

Distance / time

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16
Q

How to calculate acceleration?

A

change in velocity / time

17
Q

How to calculate resultant force?

A

Mass x acceleration

18
Q

What is Newtons 1st Law?

A

An object will remain stationary unless a forces acts on it.

19
Q

What is Newtons 2nd Law?

A

When a force is applied to an object (that has mass), it will accelerate.

20
Q

What is Newtons 3rd Law?

A

For every action, there is an equal but opposite direction.

21
Q

What is Hooke’s law?

A

Force is directly proportional to extension.

22
Q

What is the Hooke’s Law required practical?

A

Calculate the length of spring on the clamp, added a suitable mass and then measure once again, keep measuring till you have enough recordings.

PHYSICS (9 decks)

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