Today is the first day of my Science Eureka Sabattical I am very excited as I wa told that for the entire sabattical we will be doing experiment. Today we will be doing physics, I am in group D same group as my classmates like Xue Yao, Samuel and Jaron. In this blog post I will be sharing with you some experiments I did.
Theme 1: Mass, Weight and Density
Experiment 1: How Time Flies
In this experiment we need to find an open space and then take a beeping clock and tie it to an end of a string then start swinging around you, you will also need a friend to stand opposite you to hear the sound. In this experiment we need to observe the sound.
After the experiment we realize that the pitch is lower if the person is further is from the sound where as the pitch is higher if the person is nearer from the sound. Our trainer told us that this is due to the Doppler effect.
Experiment 2: Suspended Animation
In this experiment we have to find the different density of oil, water, honey, detergent, pebbles, red bean and Styrofoam. First we pour all the liquid together except detergent then we had to put the solid in.
I observe that the objects settled in this order, from bottom to top:
Pebble, Honey, Red bean, Water, Oil and Styrofoam
When we added detergent was added in it disrupted the layer between the oil and water.
Experiment 3: The Strongest Bridge
In this experiment we had to compete with other team. Our objective is to build he strongest build with 15 ice cream sticks, glue and threads. In the competition, my team came up with the strongest bridge our bridge manage to support 2 kilograms.
Theme 2: Magnets
Experiment 6: Making a Compass
In this experiment we use the stroking method to magnetise a steel needle and then we have our compass, quite an easy experiment.
Theme 3: Newton’s Laws of Motion
Experiment 8: The safest parachute
We began this lesson with the seniors teaching us newton’s 3 laws
- Everybody remains in a state of rest unless it is acted upon by an external unbalanced force
- A body mass m subject to a force f undergoes an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass [F=ma]
- To every action there is always an equal and opposite reactions or the forces of twp bodies on each other are always equal and are directed in opposite directions
In this experiment we made our very own parachute.
No comments:
Post a Comment