what is force and give an example of force in daily life.
Answers
Answer:
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Explanation:
The most obvious thing about our world is the amount of movement that is happening almost all the time. What powerful natural forces drive this movement? What is force, and how do we explain its effects? How do we make use of forces to make life easier or better?
Here we look at different ways to find out how pupils make sense of everyday forces. As their teacher, your challenge is to help them explore and assess possible explanations for how forces cause changes.
1. Discussing Forces in everyday life
How do you, the teacher, find out what your pupils already know about forces and motion? And how can you extend these ideas and link them to current scientific understanding?
In Case Study 1, a teacher raises her pupils’ awareness of all the force events around them. From the start, she challenges their understanding by asking them to see themselves as thinkers with scientific minds.
In Activity 1, you ask pupils to identify and describe forces at work captured in photographs. By trying to make sense of what they have identified, they will be increasing their science awareness with your help.
Case Study 1: Challenging pupils to see forces everywhere
Eugenia in Abuja, Nigeria, is an experienced teacher who has learned to trust her pupils. When she did an upgrading course some years back, she realised how following traditional ‘jug and mug’ (where the teacher has the ‘jug’ of knowledge and pours it into the ‘mug’ of the waiting student) teaching had led her to underestimate her pupils. Now she tells less and challenges them more.
She began the topic of ‘force’ by suggesting to her class that they have a ‘Force Week’, where nearly everything that happens will need to be explained in relation to ideas about force and movement (motion).
First thing on Monday, as they wrote the date in their books, she told them to stop and think if any force was involved in making marks on paper. A lively discussion followed. She encouraged them to investigate by making different marks on scraps of old paper. They came up with ideas that surprised and even challenged Eugenia.
‘We pull the pencil across the paper.’
‘But I push the pencil!’ exclaimed Danladi, who is left-handed.
‘The ballpoint pen slides easier than a pencil.’ – ‘Maybe the ink is like oil for a bicycle.’
‘Rough paper scratches more colour off the point of the crayon than shiny paper.’
‘Look Ma’am, you push and you pull when you rub out. Rubbing is a different kind of force.’