Theme 1: E-Waste pollution

Problem: Ferromagnetic Material Collection Issues

E-waste management is a problem that affects not just Malaysia but the entire world. E-waste has increased because of more people using various electronic devices. E-waste is reported to be as high as 50 million tonnes per year, according to international news sources. Malaysia is also not evading the issue of the illegal dumping of e-waste. This is because the issue of e-waste will get worse if Malaysians continue to have the mentality that it is normal to have more than one mobile phone for each individual and to exchange and buy new mobile phones frequently, according to Bernama news online on April 21, 2021. E-waste can seriously impact the environment and the community's health if it is not properly managed. Poor e-waste management in Sungai Muda, Kedah and Jenjarom, Selangor are just two examples of the numerous issues involving e-waste management in Malaysia. This occurs because irresponsible parties dispose their electronic waste in a dangerous manner, threatening the local population. Due to those issues, how would you collect the e-waste in the garbage effectively? What are the special properties of metal to be easily segregated? Is it possible to apply the electromagnetic concept in collecting e-waste garbage? Explain how?

Theme 2: sharp-shooter

Problem: Wild Monkey Disturbances at Home

Kosmo online news (2nd October 2020) reported that residents in the nearby Kampung Gajah Mati in Jempol, Negeri Sembilan faced problems when their respective residences were often disturbed by wild monkeys that damaged the goods in resident's homes. The monkeys often make the roof of the people's house a gathering place to invite discomfort even worse, the wild animals also dare to enter the house and damage the property of the residents. One of the residents named Imran, tries to shoot a tranquilizer dart into a monkey. He knows that the monkey will reflexively drop from the tree immediately after he pulls the trigger. Immediately after the bullet exits the barrel, the monkey will begin to fall toward the ground. He decided to shoot the monkey with very fast initial velocity. Perhaps he presumes that if shot fast enough, the tranquilizer dart will hit the monkey before it reaches the ground. Let us help Imran to study the characteristics of the tranquilizer dart. What would be the path of the tranquilizer dart? Would the tranquilizer dart hit the monkey?

Theme 3: green technology

Problem: Electricity Pricing and Tariffs Increase in Malaysia

The increase in coal prices has caused the cost of generating electricity to increase by 45%, said Energy and Natural Resources Minister Datuk Seri Takiyuddin Hassan on 15 March 2022 in Kuala Lumpur. What will you suggest to reduce the use of electricity at home or in the hostel?

Theme 4: home appliance

Problem: Global Increasing Temperature

Temperature variation in Malaysia is dominated by the El Nino-Southern Oscillation (ENSO). Between 1970-2013, Peninsular Malaysia, Sabah and Sarawak regions experienced a surface mean temperature increase of 0.14 to 0.25 degree Celcius per decade. Surface maximum temperatures increased by 0.17 to 0.22 degree Celcius per decade during the same period, while minimum surface temperature increased by 0.20 to 0.32 degree Celcius per decade. Explain how heat transfer takes place which leads to global warming? Since the temperature shows an inclined pattern every year, suggest the solution to lower the temperature at home. How will you solve this?