Question 40
FA student measures the weight of an apple using a newtonmeter.
The Figure shows the newtonmeter with the apple hanging from it.
Figure
a.[1]
Give the reading on the newtonmeter.
b.[2]
The gravitational field strength is 10 N/kg.
Calculate the mass of the apple, using the reading in (a).
c.i.[1]
Before the student hung the apple on the newtonmeter, the pointer showed 0.2 N with nothing attached.
State the name of this type of error.
c.ii.[1]
Determine the actual weight of the apple.
d.[2]
Explain why the student should wait until the apple has stopped moving before reading the newtonmeter.
2.3 Forces and Newton's laws Questions
103 exam-style questions on Edexcel GCSE Physics 2.3 Forces and Newton's laws, covering 2.3.1 Newton's first law, 2.3.2 Newton's second law, and 2.3.3 Weight and gravitational field strength. Each one has a worked solution and a mark scheme showing where the marks go.