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Understanding the structure of a muscle cell
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Solving a word problem to find average velocity and speed of an object in one-dimension.
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In this unit you will apply your understanding of the components of motion in one dimension using linear equations. This will help you to solve problems about motion in one direction and equip you to understand how these concepts apply to everyday life.
There are three equations for linear motion with constant acceleration. They can be used to calculate, and therefore predict, the outcome of motion when three out of the four variables are known.
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Introduction to cell theory--the idea that 1) all living things are made of one or more cells, 2) cells are the basic unit of life and 3) all cells come from other cells. Explore the roles that Hooke, Leeuwenhoek and others played in developing cell theory.
Hooke and Leeuwenhoek were two of the first scientists to use microscopes to study the microscopic world of cells. Hooke coined the term "cell" after observing the tiny compartments in cork, while Leeuwenhoek discovered a variety of living creatures in pond water, blood, and other samples. They contributed to the cell theory by suggesting that cells are the fundamental units of life and structure, and that all living things consist of one or more cells that originate from other cells by division.
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All living things are made up of cells, which is the smallest unit that can be said to be alive. An organism may consist of one single cell (unicellular) or many different numbers and types of cells (multicellular).
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- Explain basic electricity relationships in series and parallel circuits.
- Use an ammeter and voltmeter to take readings in circuits.
- Provide reasoning to explain the measurements and relationships in circuits.
- Build circuits from schematic drawings.
- Determine if common objects are conductors or insulators.
- Compare and contrast AC and DC circuits.
- Describe how capacitors and inductors behave in a circuit.
- Experimentally determine the RC time constant.
- Construct RLC circuits and determine the conditions for resonance.
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- Explore basic electricity relationships.
- Explain basic electricity relationships in series and parallel circuits.
- Use an ammeter and voltmeter to take readings in circuits.
- Provide reasoning to explain the measurements and relationships in circuits.
- Build circuits from schematic drawings.
- Determine if common objects are conductors or insulators.
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In this lesson you will learn that:
- Circuit diagrams are used to show how electrical components are connected in a circuit.
- Individual circuit components are represented using circuit symbols.
- Current is the flow of electrons around a circuit.
- Ammeters are used to measure the current flowing through components.
- Components in a circuit resist current flow.
- Voltmeters are used to measure the potential difference across components.
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You have learnt about static electricity where charged particles (electrons) can move from one object into another giving objects an overall charge. In this unit1 you will learn about current electricity. This is when a continuous flow of charge can be created using a circuit made of conducting wires and an energy source.