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gcse physics year 11 > Forces > Flashcards

Flashcards in Forces Deck (15)
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1
Q

When a force moves an object through a distance …

A

Energy is transferred and work is done on the object

2
Q

What does the thing applying the force need

A

A source of energy

3
Q

Work done (J) =

A

Force (N) X distance (m)

4
Q

1J =

A

1Nm

5
Q

When is one joule of work done

A

When a force of 1 newton causes an object to move a distance of ONE METRE

6
Q

Weight (N) =

A

Mass(Kg) X GFS (N/Kg)

7
Q

What effect does gravity have (2)

A
  • it make all things fall towards the ground

- it gives everything a weight

8
Q

What is distance

A

How far the object had moved

9
Q

What quantity is distance

A

Scalar- it doesn’t involve direction

10
Q

What is displacement

A

It measures the distance and direction in a straight line from an objects starting point to its finishing point

11
Q

What quantity is displacement

A

A vector quantity

12
Q

What is velocity

A

Speed in a given direction

13
Q

How does an object have CHANGING velocity

A

When the object is changing direction it staying at the same speed

14
Q

What 4 things can affect speed

A
  • fitness
  • age
  • distance travelled
  • terrain
15
Q

What can wind speed be affected by

A
  • temperature

- atmospher