# using linest to obtain a gradient and uncertainty⤴

from @ fizzics

The period (T) of a simple pendulum can be calculated using where l is the pendulum length and g is the gravitational field strength. Using a single value of length and period, we can determine the acceleration due to gravity.  However, it would be better experimental practise to vary the length of the pendulum and ... Read moreusing linest to obtain a gradient and uncertainty

# referencing guide for AH project report⤴

from @ fizzics

You should be thinking about getting some of your project report finished so there is less to do when the deadline approaches.  You can start writing up your underlying physics section and sort out the references you will include at the end of the report.  I’ve attached a guide on referencing in the Vancouver style.  ... Read morereferencing guide for AH project report

# AH revision for unit test⤴

from @ fizzics

As school is closed today, here are some revision links with you to help with preparation for the unit assessment on Monday. General Relativity HR Diagrams pp chain The link below will give you a copy of the Scholar notes for unit 1.  Log in to your Scholar account to access their tests and check ... Read moreAH revision for unit test

# using Excel’s LINEST function⤴

from @ fizzics

The period (T) of a simple pendulum can be calculated using where l is the pendulum length and g is the gravitational field strength. Using a single value of length and period, we can determine the acceleration due to gravity.  However, it would be better experimental practise to vary the length of the pendulum and ... Read more

# pp chain reaction in stars⤴

from @ fizzics

Twinkle, twinkle little star, How I wonder what you are. Giant thermonuclear reaction; Held by gravitational attraction. Twinkle, twinkle little star, You look so small ’cause you’re so far. As you burn through constant fusion, Your twinkle’s just an optical illusion. That happens when your light gets near; distorted by our atmosphere. Twinkle, twinkle little ... Read more

# AH: the Hertzsprung Russell diagram⤴

from @ fizzics

Our Sun is a typical yellow star, so its emission would be represented by the middle star in this image. image courtesy of kstars, kde.org – colour is exaggerated The colour of a star also tells us something about the expected behaviour of a star, it’s lifetime, and destiny. This is achieved by plotting stars ... Read more