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| List the steps of the scientific method in order and give their definition |
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1.) problem/question- develope a question or problem that can be solved.
2.) observation/research- make observations and research your topic of interest.
3.) Formulate a hypothesis- predict a possible answer to the problem or question.
4.) experiment- develop and follow a procedure.
5.) Collect and analyze results- modify the procedure, confirm the results.
6.) conclusion- include a statement that accepts or rejects the hypothesis |
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| what is a control? what is a variable? |
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The control variable is something that is constant and unchanged in an experiment.
variable is something that changes in an experiment |
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| What happens at each of the R.A.C.E method? |
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| restate. analyze, cite data, expand/error |
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| kilogram per cubic meter. kg/m³ |
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| meter per second squared. m/s² |
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| is the area or volume of something |
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| what is water displacement? |
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| Water displacement is a method of measuring an object's volume. Water displacement demonstrates the idea that matter has volume |
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| what is density? how do you figure out density? |
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| Density is how much mass a material has for a given volume. *mass divided by volume |
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| define velocity? how is it different than speed? |
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| The speed of something in a given direction. Speed is the rate of motion, but does not contain an element of direction. |
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| what does constant velocity mean? |
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| Neither speed nor direction of motion changes. |
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| what are displacement vectors? |
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| represents the length and direction of that imaginary straight path. |
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| define terminal velocity? |
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| Terminal velocity is a state where the force of drag and the force of gravity acting on an object are equal. |
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| define acceleration (positive and negative) |
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an object whose speed increases as it moves away from its orginial starting position.
Acceleration in a direction opposite to the velocity, or in the direction of the negative axis of a coordinate system. |
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| what are newton's three laws? examples. |
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first-An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
second- Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
third- For every action there is an equal and opposite re-action.
skateboarder hitting a rock
kicking a soccer ball then kicking a wall needed more force
rocket pushing on ground while ground pushes back |
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| force or speed of movement; impetus, as of a physical object or course of events |
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| the force of attraction by which terrestrial bodies tend to fall toward the center of the earth |
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| any motion of a body where gravity is the only force acting upon it |
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