Revision of Motion and Density chapter
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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| What is speed? | The distance travelled per unit time
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| What are the standard units of speed? | metres per second (m/s)
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| If a car travels a distance of 60km in 2 hours, calculate the average speed of the car. | 30km/h
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| If a runner runs at a speed of 4m/s, what distance would he travel in 8 seconds? | 32m
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| How long would it take a walker to travel a distance of 100km, walking at a speed of 2km/h? | 50hours
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| What is acceleration? | The rate of change of speed.
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| What are the standard units of acceleration? | metres per second squared (m/s2)
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| If a runner starting from rest reaches his maximum speed of 12m/s in 4 seconds, what is his acceleration? | 3 m/s2
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| If a car moving at a speed of 40m/s brakes suddenly down to a speed of 10m/s in a time of 3 seconds, calculate the cars deceleration. | -10m/s2
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| What is velocity? | The speed and the direction in which something is moving.
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| What is density? | The mass per unit volume of a substance.
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| What are the standard units of density? | (kilogrammes per metre cubed) kg/m3
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| What is the density of copper if 223g of it occupies a space of 25cm3? | 8.91g/cm3
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| If the density of oil is 0.8g/cm3, what volume would 20g of it occupy? | 25cm3
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| If a gradutated cylinder is filled with syrup at the bottom, water in the middle and oil at the top, which of the three liquids has the lowest density? | The Oil
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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:
joeykenn
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