In the box are the names of some forces that can provide a centripetal force - Edexcel - GCSE Physics - Question 3 - 2016 - Paper 1
Question 3
In the box are the names of some forces that can provide a centripetal force.
friction gravity magnetism reaction tension
Choose words from the box to comp... show full transcript
Worked Solution & Example Answer:In the box are the names of some forces that can provide a centripetal force - Edexcel - GCSE Physics - Question 3 - 2016 - Paper 1
Step 1
(i) When a satellite orbits the Earth the centripetal force is provided by __________.
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Answer
Gravity provides the centripetal force when a satellite orbits the Earth as it pulls the satellite towards the center of the Earth.
Step 2
(ii) When a motorbike goes around a flat circular track the centripetal force is provided by __________.
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Answer
Friction provides the centripetal force when a motorbike goes around a flat circular track, allowing it to maintain its circular motion.
Step 3
(c)(i) Complete the graph by plotting the other two points.
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Answer
To complete the graph, plot the points (3.00, 6.0) and (4.00, 6.9) on the graph, ensuring to place each point accurately according to the scales of the axes.
Step 4
(ii) Draw a curve of best fit.
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Answer
Draw a smooth curve that starts from the origin and passes through as many plotted points as possible, ensuring to represent the trend of the data effectively without steep jumps or dips.
Step 5
(iii) Use your graph to estimate the speed of the ball when the force is 6N.
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Answer
From the graph, estimate the speed of the ball at a force of 6N to be approximately between 7.2 m/s and 7.7 m/s.
Step 6
(iv) Use the graph to describe how the speed varies with the force on the ball.
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Answer
The graph indicates that as the force increases, the speed of the ball also increases. However, the relationship is not linear; speed increases faster at lower forces and begins to level off at higher forces, indicating diminishing returns.
