Unit 1 Physics as
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | A physical quantity with magnitude ( size) but not direction e.g. speed, distance, pressure, potential difference, density, energy
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| show | A physical quantity with magnitude ( size) and direction e.g. velocity, acceleration, force.
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| Displacement | show 🗑
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| Instantaneous speed | show 🗑
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| Average speed | show 🗑
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| Velocity (v) | show 🗑
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| show | The rate of change of velocity.
Acceleration= change in velocity/ time
a= ∆v/∆t
a= ((v-u))/t
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| Newtons second law | show 🗑
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| The newton | show 🗑
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| Drag | show 🗑
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| show | The gravitational force acting on an object measured in newtons
Weight = mass x acceleration due to free fall
W=mg
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| show | The velocity at which an object’s drag equals its accelerating force. Therefore there is no resultant force and zero acceleration
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| Equilibrium | show 🗑
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| Centre of gravity | show 🗑
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| Triangle of forces | show 🗑
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| Couple | show 🗑
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| Torque of a couple | show 🗑
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| show | The turning effect due to a single force. Calculated from the force multiplied by the perpendicular distance from a given point
Moment = force x perpendicular distance from a given point (pivot/fulcrum).
Moment = Fx
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| Principle of moments | show 🗑
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| Density | show 🗑
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| show | Force per unit area
Note 1Pa=1Nm-2
P=F/A
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| Thinking distance | show 🗑
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| Braking distance | show 🗑
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| Stopping distance | show 🗑
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| show | An area of a vehicle designed to increase the distance over which the vehicle decelerates and so reduce the average force acting.
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| Work done by a force(W) | show 🗑
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| The joule | show 🗑
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| Conservation of energy | show 🗑
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| show | Rate of work done
Power = workdone/time
Power=(energy transfer)/time
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| The watt | show 🗑
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| efficiency | show 🗑
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| Tensile force | show 🗑
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| show | Two or more forces that have the effect on reducing the volume of the object on which they are acting or reducing the length.
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| show | The change in length of an object when subjected to a tension.
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| Elastic limit | show 🗑
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| Limit of proportionality | show 🗑
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| Hooke’s law | show 🗑
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| Force constant(k) | show 🗑
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| Elastic potential energy | show 🗑
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| stress | show 🗑
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| strain | show 🗑
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| Young’s modulus (Y) | show 🗑
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| show | The maximum tensile force that can be applied to an object before it breaks.
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| Breaking stress | show 🗑
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| show | The object will return to its original shape when the deforming force is removed
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| Plastic deformation | show 🗑
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| show | Materials that have a large plastic region and can therefore can be drawn into a wire e.g. copper
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| show | A material that distorts very little even when subject to a large stress and does not exhibit any plastic deformation e.g. concrete.
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| show | A material made of many smaller molecules bonded together, often making a tangle knot of chains e.g. rubber. These materials often exhibit very large strains e.g. 300%
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
stumpy7780
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