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 volume of a small irregularly-shaped stone.
Which apparatus must be used?
A a measuring cylinder containing water and a ruler only
B a measuring cylinder containing water only
C an empty measuring cylinder and a ruler only
D a ruler only
Answer/Explanation
Ans:B
Question
A pendulum is set in motion and timed. The time measured for 20 complete swings is $30 \mathrm{~s}$. What is the time for one complete swing of the pendulum?
A $ 0.67 \mathrm{~s}$
B $ 0.75 \mathrm{~s}$
C $1.5 \mathrm{~s}$
D $3.0 \mathrm{~s}$
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 student is asked to find the volume of a small irregularly-shaped piece of rock.
He has the following apparatus available.
Which apparatus must the student use to find the volume of the small piece of rock?
balance and rule
rule only
balance and measuring cylinder
measuring cylinder only
Answer/Explanation
Ans: D