Question
A student investigates a pendulum.
He measures the time for the pendulum to complete 20 oscillations.
He repeats the experiment three more times.
The readings are shown.
What is the average period of the pendulum?
A 0.88 s B 0.92 s C 17.6 s D 18.4 s
Answer/Explanation
Ans:
B
Question
A student measures the diameter of a pencil.
Which measuring instrument will give the most precise reading?
A a measuring tape
B a metre rule
C a micrometer screw gauge
D a ruler
Answer/Explanation
Ans:C
Question
The diagram shows a rectangular metal sheet close to two rulers
What is the area of the metal sheet?
A 700 cm2
B 875 cm2
C 900 cm2
D 1125 cm2
Answer/Explanation
Ans: A
Question
A pendulum makes 50 complete swings in 2 min 40 s.
What is the time period for 1 complete swing?
A 1.6 s
B 3.2 s
C 4.8 s
D 6.4 s
Answer/Explanation
Ans: B
Question
Which instrument is used to measure accurately the diameter of a thin metal wire?
30 cm ruler
measuring tape
metre rule
micrometer screw gauge
Answer/Explanation
Ans: D