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My subjects > Physics > Flashcards

Physics Flashcards

1
Q

What is weight?

A

Weight is the force acting on an object due to gravity.

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2
Q

What is the equation for weight?

A

Weight = Mass x Gravitational Field Strength

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3
Q

What size is the gravity on Earth?

A

9.6N/kg

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4
Q

What is the equation for pressure?

A

Pressure = Force normal to a surface/Area of that surface

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5
Q

What is the equation for pressure(higher)?

A

Pressure = Height of column x Density of the liquid x Gravitational field strength

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6
Q

What is Distance?

A

A Scalar Quantity

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7
Q

What is Displacement?

A

A Vector Quantity

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8
Q

What is Velocity?

A

A Vector Quantity

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9
Q

What is Terminal Velocity?

A

The object will fall at a steady speed

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10
Q

What is the equation for momentum?

A

Momentum = Mass x Velocity

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11
Q

What is the thinking distance?

A

It is the distance traveled under the reaction time

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12
Q

What is the braking distance?

A

It is the distance traveled under the braking force

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13
Q

What is the equation for work done?

A

Work done = Force x Distance

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14
Q

What is Newton’s Third Law?

A

For every action there is an equal and opposite reaction

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15
Q

What is Newton’s Second Law?

A

The acceleration of an object is proportional to the resultant force acting on the object and inversely proportional to the mass of an object1

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16
Q

What is the equation for uniform acceleration?`

A

(final velocity)2 - (initial velocity)2 = 2 x acceleration x distance

17
Q

What is the equation for acceleration?

A

Acceleration = change in velocity/ time taken

18
Q

What is inertia?

A

The tendency for objects to continue in the same state of motion.

19
Q

What is Newton’s First Law?

A

An object will remain in the same state of motion unless acted on by an external force.

20
Q

What is the equation for distance traveled?

A

Distance traveled = speed x time

21
Q

What is the equation for moment of a force?

A

Moment of a force = force x distance

22
Q

What is the equation for force?

A

Force = spring constant x extension

23
Q

What is the equation for work done?

A

Work done = force x distance

24
Q

What is the resultant force?

A

When more than one one force acts on an object

25
Q

What is mass?

A

Mass of an object is related to the amount of matter it contains and is constant

26
Q

What is gravity?

A

A force of attraction between all masses

27
Q

What are non-contact forces?

A

The objects are not touching

28
Q

What are contact forces?

A

The objects are actually touching

29
Q

What is a vector quantity?

A

It has magnitude and direction

30
Q

What is a scalar quantity?

A

It has magnitude only

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