about speeding up
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| In the first three seconds Mary’s acceleration is constant. Use the slope of the graph to calculate its size in metres per second squared. | show 🗑
|
||||
| What distance does Mary fall in the first three seconds? | show 🗑
|
||||
| show |
🗑
|
||||
| Explain why you chose this time for when Mary reaches terminal velocity. | show 🗑
|
||||
| In a distance, time graph down is positive so to get to terminal velocity you would have to have a constant slope. | show 🗑
|
||||
| Using Newton’s Second Law, explain why Mary must have no net force acting on her when she is falling at a constant velocity? | show 🗑
|
||||
| Mary has a mass of 65 kg. Calculate the size of the force of gravity acting on her as she falls. | show 🗑
|
||||
| On the diagram of Mary sketch vector arrows to represent the forces on her when she is falling at terminal velocity. | show 🗑
|
||||
| show |
🗑
|
||||
| show |
🗑
|
||||
| What is the minimum work that the engine of the plane has to do to reach this height? | show 🗑
|
||||
| In reality, the engine has to do more work than this for the plane to reach 5000m. Explain why this is the case. | show 🗑
|
||||
| If the plane is flying at a speed of 60 ms-1, use the formula Ek = ½mv2 to calculate how much kinetic energy it has. | show 🗑
|
||||
| show |
🗑
|
||||
| On another trip a plane does 2.40 x 107 J of work to reach the jump height. It takes 10 minutes to get to this height. What power must the plane engine have to do this? | show 🗑
|
||||
| At sea level air pressure has a value of 1.01 x 105. Use the formula P = F/A to obtain units for pressure. | show 🗑
|
||||
| show |
🗑
|
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
callum.macmillan
Popular Physics sets