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Physics Paper 2 > 5 Forces > Flashcards

5 Forces Flashcards

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1
Q

What is a Force?

A

A force is a push or pull that acts upon an object as a result of that object’s interactions with its surroundings

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2
Q

Is force a scalar or a vector quantity and why?

A

It is a vector quantity, as it has a magnitude and a direction.

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3
Q

What is a contact force?

A

A force that occurs as a result of two objects making physical contact with each other.

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4
Q

What is a non-contact force?

A

A force which acts on an object without coming into physical contact with it.

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5
Q

Is tension a contact or non-contact force?

A

Tension is a contact force.

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6
Q

Is friction a contact or a non-contact force?

A

Friction is a contact force.

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7
Q

What is weight?

A

The force of gravity acting on an object.

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8
Q

Is weight a contact or non contact force?

A

Weight is a non-contact force.

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9
Q

Is normal contact force a contact or a non-contact force?

A

Normal contact force is a contact force.

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10
Q

Is electromagnetism a contact or a non-contact force?

A

Electromagnetism is a non-contact force.

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11
Q

Is magnetic force a contact or a non contact force?

A

Magnetic force is a non-contact force.

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12
Q

Is air resistance a contact or non-contact force?

A

Air resistance is a contact force.

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13
Q

Nam the 3 non-contact forces.

A

Weight (force due to gravity)
Electromagnetism
Magnetism

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14
Q

What is a scalar quantity?

A

A Scalar quantity is a quantity that only has a magnitude.

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15
Q

What is a vector quantity?

A

A vector quantity is a quantity that has both magnitude and a direction.

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16
Q

What does the length of each arrow on a free body diagram indicate?

A

The length of each arrow indicates the magnitude of that force.

17
Q

What does the direction of each arrow on a free body diagram indicate?

A

The direction of each arrow indicates the direction of the force.

18
Q

What is a resultant force?

A

The resultant force is the overall force acting on an object taking into account all the different forces acting on it.

19
Q

What does it mean if the forces acting on an object to be in equilibrium?

A

All the forces acting on an object balance out.

20
Q

How do you use force vectors to find the resultant force?

A

Arrange all the forces arrows tip to tail.
The resultant force will be the arrow that stretches from the start to the end.

21
Q

What is a bearing?

A

A bearing is an angle measured clockwise from the North direction

22
Q

How many digits should you use when writing bearings?

A

three (e.g. 067 not 67)

23
Q

Are bearings measured clockwise or anticlockwise from North?

A

Clockwise

24
Q
A

Physics Paper 2 (4 decks)

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