7700703
Description
Flashcards by Ridwan Hamza, updated more than 1 year ago
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Created by Ridwan Hamza
about 8 years ago
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| Question | Answer |
| Define the dependent variable. | This is what you are trying to measure. It depends on all the other variables. |
| Define the independent variable. | This is what you are trying to test to see what effect it has on the dependent variable. |
| Define the controlled variable. | These are all the other variables you don't want to test right now. |
| Name all three of the different variables. | The controlled variable, the independent variable and the dependent variable. |
| Define what a fair test is. | It's when you change only one controlled variable to become a independent variable. |
| Define a variable that is kept the same throughout the experiment. | That is called the controlled variable. |
| Define the variable that is changed during the experiment. | This is called the independent variable. |
| Define the variable that changes naturally because another variable has been changed. | This is called the dependent variable. |
| Explain why only one variable should be changed in any single experiment? | Because then it is not a fair test and you don't know which independent variable caused the effect on the dependent variable. |
| Why must you assess risks when you are designing an investigation? | To make sure no one or yourself is harmed or injured during the experiment. |
| Explain why you should try to collect 5 or more results in an experiment? | Then you can remember every step and changes you did in the test and what the outcome was. |
| How do you plot a graph? | When plotting a graph, you first decide which type of graph you need to use. Line graphs are used when you two sets of continuous measurements like height, mass or time. |
| How do you assess risks? | If there are any risks, they you need to find a ways to minimise them or you need to change your procedure to something safer. |
| How do you choose appropriate equipment? | For the bouncing tennis ball investigation, the starting height of the ball could be measured with a ruler or a tape measure. |
| How do you write a conclusion? | Your conclusion must answer your purpose or aim of your experiment. |
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