Physics AS AQA (Random Questions)

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What are the two conditions for equilibrium?
No resultant force and no resultant moment
1 of 89
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
3 of 89
What are the two conditions of a moment to be in equilibrium?
No resultant force and no
4 of 89
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
7 of 89
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
9 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
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
13 of 89
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
14 of 89
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
18 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
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What is the equation for a moment?
M = F x d
20 of 89
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
22 of 89
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?
The centre of mass of a body is the point which a single force anywhere on the body has no turning effect
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?
The centre of mass of a body is the point which a single force anywhere on the body has no turning effect
31 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
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?
The centre of mass of a body is the point which a single force anywhere on the body has no turning effect
39 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
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
44 of 89
What is unstable equilibrium?
If nudged/tilted, the object will topple one way or another
45 of 89
What is a Couple?
A pair of
46 of 89
What is the equation for the principle of moments?
Sum of the Anti-Clockwise moments = Sum of the Clockwise moments
47 of 89
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?
The centre of mass of a body is the point which a single force anywhere on the body has no turning effect
49 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
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
61 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
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
64 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)
65 of 89
What is the definition of centre of mass?
The centre of mass of a body is tg
66 of 89
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
70 of 89
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.
71 of 89
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
82 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.
83 of 89
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
89 of 89

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

Preview of the front of card 3

Card 4

Front

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

Back

Preview of the front of card 4

Card 5

Front

How do you work out a moment?

Back

Preview of the front of card 5
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