Friday, March 19, 2021
Thursday, March 11, 2021
Wednesday, March 10, 2021
2021 Physical Science 42Qns
https://forms.gle/dKeoMR4kJdr3Kyga7
42 Questions; Q1 to Q42
4 ppl per group based on index no and Qn NUMBER
Index no; 40 pupils
Q1-4
Q5-8
Q9-12
Q13-15
Q16-18
Q19-21
Q22-24
Q25-27
Q28-30
Q31-33
Q34-37
Q38-Q40
Q41-42 Mr Danny
Wednesday, February 24, 2021
Tuesday, February 23, 2021
Lesson Package - Forces pg10
Mass of 1 marble = 2.5g
Mass of diamond needed = 53g
Length of original spring = 12cm
Steps:
Step 1: Place 10 marbles(10 x 2.5g= 25g) inside bag and attach to spring.
Step 2: Measure extension, y cm , of spring (Total length minus original length of spring).
Step 3: Using proportion, find the extension that corresponds to actual diamond
25g → y cm
53g → (y/25 x 53) cm
Step 4: Replace the marbles with the raw diamond (plasticine)
Step 5: Remove small bits of plasticine until the extension matches the extension made by 53g