Week 3 Friction and Gravity
Task 1 Homework Book
Graph the class results from the Laboratory session on friction.
Complete Activity 3.10 Friction and note the different type of graphs
Complete Activity 3.10 Friction and note the different type of graphs
Task 2 Types of Friction - Animation and explanation
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Watch this video and animation of the launch and landing of the Mars Exploration Rover
Spirit, MER-A (Mars Exploration Rover -- A), is a robotic rover on Mars, active from 2004 to 2010. It was one of two rovers of NASA's ongoing Mars Exploration Rover Mission. It landed successfully on Mars at 04:35 Ground UTC on January 4, 2004, three weeks before its twin, Opportunity (MER-B), landed on the other side of the planet. Its name was chosen through a NASA-sponsored student essay competition. The rover became stuck in late 2009, and its last communication with Earth was sent on March 22, 2010.
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Task 3 Gravity - Focus 3.8What is difference between MASS and WEIGHT?
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Task 4 Laboratory Session - Falling Objects
Preparation
Science Aspects 1 page 147
Prepare for this laboratory session;
Science Aspects 1 page 147
Prepare for this laboratory session;
- Write the Purpose
- Read through the Safety, Requirements and Procedure
- Write the heading Procedure
- Write the heading Results
- Draw up a table to receive the results of your observations.
- During class set up and conduct the experiment.
- Record results
- Suggest an hypothesis for this investigation.
- State the independent and the dependent variables for this investigation.
- What variables should then have been controlled? Were they?
- Suggest how there could have been better control of the uncontrolled variables.
- Some students had their own ideas of what the results should have been and so tried to match their results to their hypothesis. This is not science. Science involves making observations, collecting data and making inferences form the data; not the other way around.
- Construct a quick graph of your data and compare the graph of each group. Can any reliable inferences be made from these graphs?
Do different things fall faster?
Visit the ABC website and watch Do different things fall faster? http://splash.abc.net.au/media?id=30393
Non- Contact Forces - Magnetism
Task 3 - 3.9 Magnetic Fields
- Science Aspects 1, Page 150 – Make notes and draw Figure 3.9.7
- Worksheet “Force Pattern around a Magnet". In pairs; Follow instructions on the worksheet and complete your observations and drawings in your science book.
- Worksheet "Magnetic Shields". In pairs; Follow instructions on the worksheet and complete your observations and drawings in your science book.
- Complete Science Aspects 1, Page 151 questions 4, 5, 6, 10
- Complete Homework Book 3.13 Magnets
- Watch; What is the magnetic field?
- There are several videos on interesting aspects of magnetic fields