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Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Wednesday, July 7, 2021

Science-Speeding Past School

 Aim - See how many cars are speeding past school

Method-

1. Measure distance... power pole 🠞 powerpole= 50m
2. Time how long it takes a car to travel this distance 

- "Flag" person indicates when the car passes the pole

  - "timer" person starts when a car passed the flag pole and stops when the car passes their pole

   - "writer" person writes downtimes

3. Collect 10 times

4. Calculate speed in m/s 🠞 convert to km/hr

5. Are there any speeders?


Speed

Car 1

Car 2

Car 3

Car 4

Car 5

Car 6

Car 7

Car 8

Car 9 

Car 10

Average

Time(s)

4.42

5.12

3.36

2.48

4.60

3.48

4.04

4.63

5.55

8.88

4.65

m/s

11.31

9.76

14.88

20.16

10.86

14.36

12.37

10.79

9.00

5.63

10.75

Km-hr

40.72

35.15

53.57

72.58

39.13

51.72

44.55

38.87

32.43

20.27

38.70





Friday, September 18, 2020

energy transformation experiment

 1. Chemical +electrical - Battery 

2. Light +Chemical - Flashlight 

3. Kinetic + light - Car  

Aim- To make a marshmallow shooter transforms energy.

Equipment 

- Plastic cup 

- Marshmallows 

- Balloon 

-Scissors


Tuesday, September 8, 2020

Energy

 Definition: Stored in an object, the ability to move something.

Different kinds of energy 

Light energy: the energy of electromagnetic waves. Used in microwaves, x-rays and visible light

Heat energy: Cause by the movement of particles. Found in all hot objects

Sound energy: Energy produced by vibrating objects examples are speech or music 

Chemical potential energy. Energy stored in the bonds between particle. found in substances like petrol and food.

Gravitational potential energy: Energy stored in objects due to their height above the ground.

Kinetic energy: Energy due to the motion of an object Eg. moving cars, running, swimming.  

Elastic potential energy: Energy stored in stretched or squashed objects. Examples are stored springs.

 


Tuesday, September 1, 2020

Science Introduction

 The topics we will be studying in science are:

1.Energy types 

2.Energy Transformation 

3.Waves 

4.Sound 

5.Light 

6.The eye 

7.Reflection and reflection of light 

8.Electricity 

9.Circuits 

10. Magnetism

All experiments will use the scientific method. The headings that are used for this will be: 

Aim 

Hypothesis 

Equipment 

Method 

Findings

Conclusion