Quiz
Moments and levers
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Questions in this quiz (8)
1The turning effect of a force is called the [blank_start]moment[blank_end] of the force.
- Amoment
2The [blank_start]moment[blank_end] of the force both depends on the size of the [blank_start]force[blank_end] and how far it is [blank_start]applied[blank_end] to the pivot or [blank_start]fulcrum[blank_end].
- Amoment
- Bforce
- Capplied
- Dfulcrum
3moment of force = [blank_start]force[blank_end] x [blank_start]perpendicular distance from fixed axis[blank_end]
- Aperpendicular distance from fixed axis
- Bforce
4The law of [blank_start]memoments[blank_end] (also called the law of the lever) is stated as follows:
When a body is in equilibrium the [blank_start]sum[blank_end] of the clockwise moments about any [blank_start]point[blank_end] [blank_start]equals[blank_end] the sum of the [blank_start]anti-clockwise[blank_end] moments about the [blank_start]same[blank_end] point. There is no [blank_start]net[blank_end] moment on a body which is in equilibrium.- Amoments
- Bsum
- Cpoint
- Dequals
- Esame
- Fanti-clockwise
- Gnet
5The unit for the moment of force is the [blank_start]newton metre[blank_end] ([blank_start]N m[blank_end]).
- Anewton metre
- BN m
6A [blank_start]level[blank_end] is any device which can turn about a [blank_start]pivot[blank_end]. In a working [blank_start]level[blank_end] a force called the [blank_start]effort[blank_end] is used to overcome a [blank_start]resisting[blank_end] force called the [blank_start]load[blank_end].
- Alever
- Bpivot
- Clever
- Deffort
- Eresisting
- Fload
7The conditions for equilibrium are:
(i) The [blank_start]sum[blank_end] of the [blank_start]forces[blank_end] in one direction [blank_start]equals[blank_end] the sum of the forces in the [blank_start]opposite[blank_end] direction.
(ii) The law of [blank_start]moments[blank_end] must apply.- Asum
- Bforces
- Cequals
- Dopposite
- Emoments
8According the [blank_start]first[blank_end] condition for equilibrium, the [blank_start]reactions[blank_end] have to [blank_start]equal[blank_end] each other.
- Afirst
- Breactions
- Cequal
Information
- Description
- A small quiz that highlights all the relevant facts and forumlas you need to know about moments and levers.
- Author
- Seth-Riley Adams
- Language
- English
- Views
- 121
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