Forces Flashcards

1
Q

What is the speed of gravity

A

9.81 m/s2

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2
Q

What is braking distance

A

The length the car travels after the brakes are applied

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3
Q

What is braking force

A

The measure of break power

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4
Q

What is thinking distance

A

How far the car travels before the breaks are applied

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5
Q

What is the equation for velocity

A

V=u+at

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6
Q

What is inertial mass

A

The ratio of force to acceleration

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7
Q

What is the thermal store of energy

A

Hot things

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8
Q

What is the kinetic store of energy

A

Moving objects

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9
Q

What is the chemical store of energy

A

Inside chemical bonds

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10
Q

What is the gravitational potential energy store of energy

A

Any object of the floor

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11
Q

What is the mechanical pathway

A

When a force is involved in changing the store of energy

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12
Q

Give an example of something that is non-efficient

A

Humans

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13
Q

Give an example of something that is efficient

A

Energy efficient fridge

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14
Q

What is the work done equation

A

W=fs

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15
Q

What is the law of the conservation of energy

A

Energy cannot be destroyed or created

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16
Q

What is momentum

A

A property of a moving object which depends on the mass of the objects and how fast its moving

17
Q

How do you calculate momentum

A

P=mv
P- momentum (kg.m/s)
M- mass (kg)
V- velocity(m/s)

18
Q

What is newtons 2nd law

A

Force is directly proportional to acceleration