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172 preguntas
| 🇬🇧 | 🇬🇧 |
| Hypotheses need to be based on… | Observations |
| What is the scientific difference between a hypothesis and a theory? | The amount of evidence by which they are supported |
| Essentially, a hypothesis is a... | Conjecture |
| Scientific theories are supported by... | Substantial evidence |
| What is a Hazard? | Something that could potentially cause harm |
| To ensure the results of your investigation are reproducible, you can compare them by taking another set of readings using? | Different equipment |
| Which type of model uses words to describe the features of a system and how they interact | Descriptive |
| A mathematical model that needs a computer to carry out complex calculations defines a ___ model | Computational |
| ____ are used in the study of earthquakes | Computational models |
| If you add together all your data values and divide by the total number of values in the sample, what data will you be collecting? | The mean (average) |
| In a calculation the first significant figure of a number is… | The first digit that is not zero |
| In a calculation you should always round the numbers to the… | Lowest number of significant figures |
| The first significant figure in a number reads from… | Right to left |
| The trailing zeros in a whole number are… | Significant |
| The leading zeros in a decimal are… | Not significant |
| What do you call the slope in a linear graph? | The gradient |
| How do you calculate the gradient? | Gradient = change in y / change in x |
| Your mum | Your mum answer |
| The SI base unit of candela (cd) is used to measure the quantity of? | Luminous intensity |
| The SI base unit of mole (mol) is used to measure the quantity of? | Amount of substance |
| To convert from bigger units to smaller units do you divide or multiply by the conversion factor? | Multiply |
| To convert from smaller units to bigger units do you multiply or divide by the conversion factor? | Divide |
| Prefixes are intended to to create appropriately sized units to ensure the numbers are read much... | Easier |
| The multiplication factor for Tera is 10¹². Write the multiplication factor numerically. | 1 000 000 000 000 |
| The multiplication factor for Giga is 10⁹. Write the multiplication factor numerically. | 1 000 000 000 |
| The multiplication factor for Nano is 10⁻⁹. Write the multiplication factor numerically. | 0.000 000 001 |