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Variables Quiz 1
| Question | Answer |
|---|---|
| variable | anything that you can change in an experiment that might affect the outcome |
| pendulum | a mass that hangs from a fixed point that is free to swing to and fro |
| cycle | any motion or activity that repeats itself |
| standard | the basic procedure used in a controlled experiment, before changing any of the variables |
| controlled experiment | only one variable can be changed in order to assess its effect |
| two-coordinate graph | shows the outcome of a series of experiments when a variable is changed by steps |
| capacity | the greatest amount of fluid a container can hold |
| What variable affects the number of swings of a pendulum? | Length |
| What is the relationship between the length of a pendulum and the number of swings? | As the length of the pendulum increases, the number of swings decreases. OR As the length of the pendulum decreases, the number of swings increases. |
| A two-coordinate graph can be used as a tool to do what? | Predict events |
| What is the relationship between the capacity of the lifeboat and the number of passengers they can support? | As the capacity of the lifeboat increases, the number of passengers supported also increases OR As the capacity of the lifeboat decreases, the number of passengers supported also decreases. |
| What is the formula for density? | Density = Mass divided by volume |
| What is the density of a material that has a mass of 100g and a volume of 25 cc? | 4 g/cc |
| What is the density of a material that has a mass of 800g and a volume of 50cc? | 16 g/cc |
| What is the density of a material that has a mass of 400 g and a volume of 1,000 cc? | 0.4 g/cc |