PractiseQuestion bank
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12 questions
SA-FM-EL-0022 marksL1 FoundationCalculatorElastic energy
Find the elastic potential energy in a spring of natural length 0.5 m and modulus 40 N compressed by 0.1 m. Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-G012 marksL1 FoundationCalculatorHooke's law
An elastic string has natural length 2 m and modulus 30 N. Find the tension when it is stretched to 2.5 m. Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-Q011 markL1 FoundationNon-calculatorElastic energy
If the extension of an elastic string is tripled, the stored energy
Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-X011 markL1 FoundationCalculatorHooke's law
An elastic string has natural length 0.5 m and modulus 20 N. Find the tension when it is extended by 0.1 m. Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-X021 markL1 FoundationCalculatorElastic energy
Find the elastic energy stored in the same string at that extension, in J.
Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-X031 markL1 FoundationCalculatorHooke's law
A spring of natural length 0.25 m and modulus 50 N is compressed by 0.05 m. Find the thrust in N. Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-0012 marksL2 StandardCalculatorHooke's law
A 2 kg particle hangs in equilibrium on an elastic string of natural length 1.5 m and modulus 49 N. Find the extension in metres (g=9.8). Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-0032 marksL2 StandardCalculatorEnergy problems
The spring in the last question launches a 0.2 kg ball along a smooth table. Find its speed in m s−1. Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-0042 marksL2 StandardCalculatorHooke's law
A string of natural length 0.8 m stretches to 1 m when a 0.5 kg mass hangs from it. Find the modulus λ (g=9.8). Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-X042 marksL2 StandardCalculatorHooke's law
A 3 kg mass hangs at rest on an elastic string of natural length 1.2 m, extending it by 0.4 m. Find the modulus (g=9.8). Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-X053 marksL3 ExamCalculatorEnergy problems
A 0.4 kg ball on a smooth table is held against a spring (natural length 0.3 m, modulus 60 N) compressed by 0.1 m, then released. Find its speed in m s⁻¹ (3 s.f.). Salam Academy Original Practice · Proposed mark scheme
SA-FM-EL-0054 marksL4 ChallengingCalculatorEnergy problems
A 0.5 kg particle hangs on an elastic string (natural length 1 m, modulus 49 N) fixed at O. It is pulled down to 1.5 m below O and released. Find its speed in m s−1 when the string becomes slack (g=9.8). Salam Academy Original Practice · Proposed mark scheme