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Physics > Equations > Flashcards

Equations Flashcards

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1
Q

What equation relates speed, distance and time?

A

speed = distance/time

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2
Q

What equation is correct for the pressure due to a column of liquid?

A

pressure = density x gravity x height of column

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3
Q

Which is the correct equation relating force, spring constant and extension?

A

force = extension/spring constant

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4
Q

What is the correct equation for power?

A

power = (current)^2 x resistance

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5
Q

What is the correct unit for power?

A

Watts (W)

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6
Q

What is the correct unit for time?

A

seconds (s)

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7
Q

What is the correct unit for acceleration?

A

metres per second squared (m/s^2)

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8
Q

What is the equation for Weight

A

weight = mass × gravitational field strength

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9
Q

What is the equation for work done

A

work done = force × distance (along the line of action of the force)

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10
Q

What is the equation for force appiled to a spring

A

force applied to a spring = spring constant × extension

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11
Q

What is the equation for distance travelled

A

distance travelled = speed × time

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12
Q

What is the equation for acceleration

A

acceleration =change in velocity/
time taken

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13
Q

What is the equation for resultant force

A

resultant force = mass × acceleration

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14
Q

What is the equation for momentum

A

momentum = mass × velocity

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15
Q

What is the equation for kinetic energy

A

kinetic energy = 0.5 × mass × (velocity)^2

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16
Q

What is the equation for gravitational potential energy

A

gravitational potential energy = mass × gravitational field strength × height

17
Q

What is the equation for power

using resistance

A

power = (current)^2 × resistance

18
Q

What is the equation for power

using potenial diffenernce

A

power = potential difference × current

19
Q

What is the equation for charge flow

A

charge flow = current × time

20
Q

What is the equation for power

using work done

A

power =
work done/ time

21
Q

What is the equation for efficency

general

A

efficiency = useful/ total

22
Q

What is the equation for energy transfered

using charge flow

A

energy transferred = charge flow × potential difference

23
Q

What is the equation for energy transfered

using power

A

energy transferred = power × time

Physics (11 decks)

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