# Physics AS AQA (Random Questions)

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- Created by: Kelsie_Em182
- Created on: 08-10-14 18:34

What are the two conditions for equilibrium?

No resultant force and no resultant moment

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What is the principle of moments?

For an object not to rotate. Equal forces on both sides and everything is level

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How do you work out a moment?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

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What are the two conditions of a moment to be in equilibrium?

No resultant force and no

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How do you work out a moment?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

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What are the two conditions of equilibrium?

No resultant force and no resultant moment

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What is the centre of mass?

The centre of mass

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How do you work out a moment?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

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What are the two conditions of equilibrium?

No resultant force and no resultant moment

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What is the centre of mass?

The centre of mass of a body is the point which a single force anywhere on the body has no turning effect

10 of 89

How do you work out a moment?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

11 of 89

What are the two conditions of equilibrium?

No resultant force and no resultant moment

12 of 89

What is the centre of mass?

The centre of mass of a body is the point which a single force anywhere on the body has no turning effect

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What is the centre of gravity?

A point from which the weight of a body may be considered to act. In uniform gravity it is the same as the centre of mass

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How do you work out a moment?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

15 of 89

What are the two conditions of equilibrium?

No resultant force and no resultant moment

16 of 89

What is the centre of mass?

The centre of mass of a body is the point which a single force anywhere on the body has no turning effect

17 of 89

What is the definition of the centre of gravity?

A point from which the weight of a body may be considered to act. In uniform gravity it is the same as the centre of mass

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What is the definition of the moment of force?

Force x Perpendicular distance between the line of action of force and the pivot

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What is the equation for a moment?

M = F x d

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What is the definition of the Moment of a Couple?

One force x Distance between the two forces

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In equilib

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

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What are the two conditions of equilibrium?

No resultant force and no resultant moment

23 of 89

What is the definition of the centre of mass?

24 of 89

What is the definition of the centre of gravity?

A point from which the weight of a body may be considered to act. In uniform gravity it is the same as the centre of mass

25 of 89

What is the definition of the moment of force?

Force x Perpendicular distance between the line of action of force and the pivot

26 of 89

What is the equation for a moment?

M = F x d

27 of 89

What is the definition of the Moment of a Couple?

One force x Distance between the two forces

28 of 89

What is the equation for the principle of moments?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

29 of 89

What are the two conditions of equilibrium?

No resultant force and no resultant moment

30 of 89

What is the definition of the centre of mass?

31 of 89

What is the definition of the centre of gravity?

32 of 89

What is the definition of the moment of force?

Force x Perpendicular distance between the line of action of force and the pivot

33 of 89

What is the equation for a moment?

M = F x d

34 of 89

What is the definition of the Moment of a Couple?

One force x Distance between the two forces

35 of 89

What is stable equilibrium?

If moved

36 of 89

What is the equation for the principle of moments?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

37 of 89

What are the two conditions of equilibrium?

No resultant force and no resultant moment

38 of 89

What is the definition of the centre of mass?

39 of 89

What is the definition of the centre of gravity?

40 of 89

What is the definition of the moment of force?

Force x Perpendicular distance between the line of action of force and the pivot

41 of 89

What is the equation for a moment?

M = F x d

42 of 89

What is the definition of the Moment of a Couple?

One force x Distance between the two forces

43 of 89

What is stable equilibrium?

If tilted, the object will move back to its original place without toppling

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What is unstable equilibrium?

If nudged/tilted, the object will topple one way or another

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What is a Couple?

A pair of

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What is the equation for the principle of moments?

Sum of the Anti-Clockwise moments = Sum of the Clockwise moments

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What are the two conditions of equilibrium?

No resultant force and no resultant moment

48 of 89

What is the definition of the centre of mass?

49 of 89

What is the definition of the centre of gravity?

50 of 89

What is the definition of the moment of force?

Force x Perpendicular distance between the line of action of force and the pivot

51 of 89

What is the equation for a moment?

M = F x d

52 of 89

What is the definition of the Moment of a Couple?

One force x Distance between the two forces

53 of 89

What is stable equilibrium?

If tilted, the object will move back to its original place without toppling

54 of 89

What is unstable equilibrium?

If nudged/tilted, the object will topple one way or another

55 of 89

What is a Couple?

A pair of equal and opposite forces acting on a body but not along the same line

56 of 89

What is stable equilibrium?

If tilted, the object wi

57 of 89

What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

58 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

59 of 89

What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

60 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

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How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x D

62 of 89

What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

63 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

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How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x d)

65 of 89

What is the definition of centre of mass?

The centre of mass of a body is tg

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What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

67 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

68 of 89

How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x d)

69 of 89

What is the definition of centre of mass?

The centre of mass of a body is the point where a single force on the body has no turning effect

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What is the definition of centre of gravity?

a point from which the weight of a body or system may be considered to act. In uniform, gravity it is the same as the centre of mass.

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What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

72 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

73 of 89

How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x d)

74 of 89

What is the definition of centre of mass?

The centre of mass of a body is the point where a single force on the body has no turning effect

75 of 89

What is the definition of centre of gravity?

A point from which the weight of a body may be considered to act. In uniform, gravity it is the same as the centre of mass.

76 of 89

How do you work out the moment of a Couple?

One force x distance between the two forces

77 of 89

What is a Couple?

A pair of equal and opposite forces acting on a body, but not along the same line

78 of 89

What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

79 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

80 of 89

How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x d)

81 of 89

What is the definition of centre of mass?

The centre of mass of a body is the point where a single force on the body has no turning effect

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What is the definition of centre of gravity?

A point from which the weight of a body may be considered to act. In uniform, gravity it is the same as the centre of mass.

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How do you work out the moment of a Couple?

One force x distance between the two forces

84 of 89

What is a Couple?

A pair of equal and opposite forces acting on a body, but not along the same line

85 of 89

What is stable equilibrium?

If tilted, the object will move back to its original position without toppling

86 of 89

What is unstable equilibrium?

If tilted even slightly, the object will topple one way or another

87 of 89

How do you work out a moment?

Force x Perpendicular distance between the pivot and the line of action of the force (M = F x d)

88 of 89

What is the definition of centre of mass?

The centre of mass of a body is the point where a single force on the body has no turning effect

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## Other cards in this set

### Card 2

#### Front

What is the principle of moments?

#### Back

For an object not to rotate. Equal forces on both sides and everything is level

### Card 3

#### Front

How do you work out a moment?

#### Back

### Card 4

#### Front

What are the two conditions of a moment to be in equilibrium?

#### Back

### Card 5

#### Front

How do you work out a moment?

#### Back

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