The of force is the newton (N). One newton is equal to the force required to cause a of 1 kilogram (kg) to at 1 metre per second per second (m/s²). For example, if an object with a mass of 1 kg is floating in space, and is pushed by a constant force of 1 N, the (speed) of the mass, measured in metres per second (m/s), will increase by 1 m/s every second (= 1 m/s²). On earth, • exerts a downward acceleration of approximately 10 m/s². Therefore, on earth, a 1 kg mass is subjected to a downward force of approximately 10 N, a 2 kg mass to 20 N, and so on. The effect a force has on an object, such as a column in a building, depends on the • of the force (how great the force is). It also depends on the size of the object – so for a column, how thick it is, or more precisely, what its cross-sectional • is. If the same force is applied to two columns with different-sized cross-sections, the thinne column will have a harder time, as the force will be more concentrated. The degree to which force is concentrated (the measurement of force divided by area) is called and is measured in Pascals (P), the unit of pressure. When subjected to stress, an object will either mov (e.g. slide or sink), (change shape), or do both. In a column in a building, for example, an applied stress will tend to cause the column to + (squash) slightly – though this deformation will be very slight, and invisible to the eye. In engineering, a change in shape due to the effects of stress, such as compression (decreasing in length) or • (increasing in length), is called
The of force is the newton (N). One newton is equal to the force required to cause a of 1 kilogram (kg) to at 1 metre per second per second (m/s²). For example, if an object with a mass of 1 kg is floating in space, and is pushed by a constant force of 1 N, the (speed) of the mass, measured in metres per second (m/s), will increase by 1 m/s every second (= 1 m/s²). On earth, • exerts a downward acceleration of approximately 10 m/s². Therefore, on earth, a 1 kg mass is subjected to a downward force of approximately 10 N, a 2 kg mass to 20 N, and so on. The effect a force has on an object, such as a column in a building, depends on the • of the force (how great the force is). It also depends on the size of the object – so for a column, how thick it is, or more precisely, what its cross-sectional • is. If the same force is applied to two columns with different-sized cross-sections, the thinne column will have a harder time, as the force will be more concentrated. The degree to which force is concentrated (the measurement of force divided by area) is called and is measured in Pascals (P), the unit of pressure. When subjected to stress, an object will either mov (e.g. slide or sink), (change shape), or do both. In a column in a building, for example, an applied stress will tend to cause the column to + (squash) slightly – though this deformation will be very slight, and invisible to the eye. In engineering, a change in shape due to the effects of stress, such as compression (decreasing in length) or • (increasing in length), is called
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
do it by putting the words back, please
Transcribed Image Text:mass
accelerate
strain
e area
velocity
deform
elongation
unit
magnitude
gravity
stress
compress
Transcribed Image Text:Choose the correct words to complete the textbook extract about the effects of forces.
The
of force is the newton (N). One newton is equal to the force required to cause a
of 1 kilogram (kg) to
at 1 metre per second per second (m/s²). For example, if an object with a mass of 1 kg is floating in space, and is pushed by a
constant force of 1 N, the
(speed) of the mass, measured in metres per second (m/s), will increase by 1 m/s every second (= 1
m/s2). On earth,
exerts a downward acceleration of approximately 10 m/s?. Therefore, on earth, a 1 kg mass is subjected to a
downward force of approximately 10 N, a 2 kg mass to 20 N, and so on. The effect a force has on an object, such as a column in a building,
depends on the
of the force (how great the force is). It also depends on the size of the object – so for a column, how thick it is, or
more precisely, what its cross-sectional
is. If the same force is applied to two columns with different-sized cross-sections, the thinner
column will have a harder time, as the force will be more concentrated. The degree to which force is concentrated (the measurement of force
divided by area) is called
+ , and is measured in Pascals (P), the unit of pressure. When subjected to stress, an object will either move
(e.g. slide or sink),
(change shape), or do both. In a column in a building, for example,
applied stress will tend to cause the
column to
(squash) slightly – though this deformation will be very slight, and invisible to the eye. In engineering, a change in shape
due to the effects of stress, such as compression (decreasing in length) or
• (increasing in length), is called
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