hi, we are a few non-native English speaker physics teacher and we wrote some questions for an assessment book(adsbygoogle = window.adsbygoogle || []).push({});

but we can't be sure about this two similar question.

a) are they accurate for rules of English, are we use correct terms is there a necessary change?

b) are they accurate for rules of physics and are the answers accurate?

FIRST QUESTION

1. The problem statement, all variables and given/known data

A child on an playground swings through a total of 32°. If the displacement is equal on each side of the equilibrium position, what is the amplitude of this vibration?

a) 8° b)32° c)16° d)64°

2. Relevant equations

none

3. The attempt at a solution

one of my colleague says the answer should 8° I think it should be 16°

second

SECOND QUESTION

1. The problem statement, all variables and given/known data

the amplitude of a simple pendulum is 0.17 rad. what is the angular displacement of this pendulum for one complete cycle?

a)0.17 rad b)0.34 rad c) 0.51 rad d)0.68 rad

2. Relevant equations

none

3. The attempt at a solution

my colleague says the answer should 0.68 rad. I think it should be zero rad.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Swing and angular displacement

Have something to add?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**