21st Century Science P4 revision
Quiz yourself by guessing what should be in
each of the black rectangles below before clicking
on it to display the answer.
Help
| Questions |
 |
|
| Answers |
|
|
| Speed is .... |
The distance travelled in a certain time. |
| The formula for speed is |
Distance / Time |
| the axis in a distance speed graph are... |
Time on the x axis and Distance up the y axis. |
| Speed can be calculated by |
calculating the gradient of the graph horitontal / vertical |
| In a distance speed graph the flat sections are .... |
where the object is stopped |
| In a distance time graph the steeper the slope... |
the faster the object is going |
| In a distance time graph the downhill section meens.. |
the objct is coming back towards you. |
| When talking about distance time graphs disances can be.... |
positive or negative. |
| Speed is just a number but.. |
velocity has direction too |
| in a velocity time graph gradient represents.... |
acceleration |
| in a velocity time graph flat sections represent... |
constant speed |
| in a velocity time graph the steeper the slope... |
The greater the acceleration |
| In a velocity time graph uphill sections indicate... |
acceleration |
| in a velocity time graph downhill sections indicate.. |
deceleration |
| in a velocity time graph the area under the graph is equal to... |
the distance travelled in that time interval. |
| Forces occur when...... |
two objects interact |
| If you push against a wall, the wall... |
pushes back |
| Moving objects normally.... |
experience Friction |
| Resultant force is... |
the overall force acting on an object. |
| The formula for Momentum is |
mass x velocity |
| The formula for change of momentum is.. |
Resultant force x time for which the force acts |
| change in energy is the same as.. |
Work done |
| The formula for work done is |
Force x Distance |
| The formula for kinetic energy is |
half x mass x velocity squared |
| The formula for change in gravitational potential energy is |
Weight x change in height |
| Falling objects convert gravitational potential energy into |
Kinetic energy |
|
