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Science Review 1
Review of science on investigations 1 and 2
| Question | Answer |
|---|---|
| Pendulum | a mass hung from a fixed point that swings back and forth |
| Cycle | any motion or activity that repeats itself |
| Variable | anything in an experiment that might affect or change the outcome |
| Standard | basic procedure used in a controlled experiment before you change any variables |
| Controlled-Experiment | an experiment in which one variable is changed and compared to standard |
| Two-Coordinate Graph | shows the outcome of a series of experiments when a variable is changed by steps |
| Galileo | Italian scientist who used a pendulum to measure time |
| Capacity | greatest amount in a fluid container |
| Density | amount of matter that will fit in given space |
| Archimedes | mathematician and scientist who used displaced water to tell about an object |
| Identify the variables that can affect or don't affect the number of swings in a pendulum can complete in a given time period | affect: length of string do not affect: mass of bob, height of drop |
| Describe the relationship between the length of a pendulum and the number of cycles it makes | the length of a pendulum will affect the number of cycles. longer=less |
| Identify variables that will affect the number of passengers lifeboats can hold | the capacity, the water calmness, penny drop |
| Describe the relationship between the capacity of a boat and the number of passengers it can hold | the more capacity the lifeboat has, the more passengers it can hold |
| Explain why a substance will float or sink | if the substance has less density than the water (1) it will float, if it has more, it will sink |
| How dense is water | 1.0 g |
| How dense is salt water | 1.2 g |
Created by:
AZaborek58
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