What we will do What we will learn 10N 16 Haratua 2017

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Presentation transcript:

What we will do What we will learn 10N 16 Haratua 2017 Quick quiz and preliminaries How to start well Make some circuits with two lamps and a switch that do two different jobs How to interpret instructions and make a circuit (plus draw the circuit) If time, revisit Resistance and help sing the Chorus parts of the song that Mr H wrote There are many ways to learn Science – and Mr H likes to try to cater for everyone, if possible If time, find out what conventional current is and how it happened What conventional current is and why we use it If time, introduce resistors and how they are used at home. PLUS, write down a description of their efficiencies What resistors are, how they are used and how efficient is each use If time, draw diagrams of circuits using 3 lamps (twice) and describe the brightnesses and how those compare to the currents How to link layout, brightness, current flow and how to explain the behaviour of a circuit

10N – Seating Plan Front of lab - Whiteboard

HW item Skills practiced HW booklet pages on skeletal system, muscles and joints, blood and heart, circulatory system Pages 1 - 8 Due Thursday 2nd of March 2017 Time management Knowledge of three systems in the body HW booklet pages 9 – 18: circulatory, breathing and digestive systems. Due Monday 20th of March 2017 HW booklet pages 19, 27, 28, 29 Human Reproduction Due Zenday 37th of Octember Human Reproduction EOT test Due Monday 10th of April Humans and reproduction

Resistance is a measure of how tough it is to get electrons THROUGH something. It is measured in “How many volts does it take to get one Amp to flow through the thing” OR Volts per Amp OR Volts/Amp OR V/A OR VA-1 OR Ohms OR 

Power Power is a way of saying how quickly energy is changed from one type to another. It is measured in Joules Per Second Power = Voltage x Current (P=VxI)

Voltage (Volts) Current (Amps) Power (Watts) 6 0.5 ? 50 100 12 60 3

Voltage (Volts) Current (Amps) Power (Watts) 6 0.5 50 ? 100 12 60 3

Voltage (Volts) Current (Amps) Power (Watts) 6 0.5 50 100 12 60 3

Voltage (Volts) Current (Amps) Power (Watts) 6 0.5 50 100 12 60 3

Voltage (Volts) Current (Amps) Power (Watts) 6 0.5 50 100 12 60 3

Verbal Question

Yes! It is!

Conductors and Insulators Conductors are substances that let current flow through them. Insulators are substances that do not. We can make a circuit to test objects to see if they are conductors or insulators. We will need: 3 wires A lamp A DC voltage source (the outlets on the walls)

Conductors Insulators