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Y10 Flashcards > Physics > Flashcards

Physics Flashcards

1
Q

What is displacement

A

A distance without a change in direction

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2
Q

What is a vector

A

Physical quantities with size(magnitude) and distance

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3
Q

What are scalars

A

Physical quantities with size but no direction

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4
Q

What is the force of gravity(N)

A

9.81(rounded to 10)

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5
Q

What is mass

A

The amount of matter within something

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6
Q

What is weight

A

How strong the gravityof the earth is pulling us towards the center of the earth

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7
Q

What is velocity

A

Speed in a given direction

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8
Q

What is speed

A

How fast something is going(no direction)

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9
Q

What is acceleration

A

How fast something can increase its velocity

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10
Q

What is power

A

The rate of change of power(how fast energy changes)

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11
Q

What is the difference between scalar and vector quantities

A

Scalars on have properties with size while vectors have both size and direction

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12
Q

What is Newton’s thrid law of motion

A

Every action has an equal oppostie reaction

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13
Q

What is friction

A

The force exerted by a surface against and object in motion

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14
Q

What is the resultant force

A

A singular force that represents the overall force when something is affected by multiple forces

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15
Q

What happens when the resultant force is 0

A

The object is either stationary or constantly in motion

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16
Q

What are balanced forces

A

When

17
Q

What energy resources are renewable

A

Biofuels,geothermal,solar,tidal,wind

18
Q

What energy resources are not renewable

A

Fossil fuels, nuclear power

19
Q

How do biofuels produce electricity

A

Chemical energy stored in hpthings that were once alive can be transferred into thermal energy by burning them. This energy is then used to boil water into steam to transfer kinetic energy from a spinning trubine into electricity

20
Q

How does nuclear power create electricity

A

Unstable atoms split into two

Y10 Flashcards (7 decks)

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