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(a)Read question and case materials as text
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A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Read the initial water temperature θ₁ from the thermometer in Fig. 1.1. Record it in °C.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Fig. 1.2Fig. 1.1
Read the initial water temperature θ₁ from the thermometer in Fig. 1.1. Record it in °C.
[1 mark]
(b)(i)Read question and case materials as text
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A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Read the maximum water temperature θ₂ in Fig. 1.3. Using θ₁ from Fig. 1.1, calculate θ₂ − θ₁.
Read the maximum water temperature θ₂ in Fig. 1.3. Using θ₁ from Fig. 1.1, calculate θ₂ − θ₁.
Fig. 1.3Fig. 1.1
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[1 mark]
(b)(ii)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Using the beaker in Fig. 1.2 and thermometer in Fig. 1.3, describe how to ensure the maximum temperature θ₂ is measured as accurately as possible. Give two distinct actions.
Using the beaker in Fig. 1.2 and thermometer in Fig. 1.3, describe how to ensure the maximum temperature θ₂ is measured as accurately as possible. Give two distinct actions.
Fig. 1.2Fig. 1.3
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[2 marks]
(b)(iii)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
The beaker is made from a special type of glass. Suggest why it is suitable for this experiment.
The beaker is made from a special type of glass. Suggest why it is suitable for this experiment.
Fig. 1.2
Answer guidance
Suggest More than one answer may be acceptable, so long as it is consistent with the physics.
[1 mark]
(b)(iv)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Using θ₁ from Fig. 1.1 and θ₂ from Fig. 1.3, calculate the specific heat capacity cₘ of the 50 g mass: cₘ = 4.2(θ₂ − θ₁) / [2(100 − θ₂)]. Give J/(g °C).
Using θ₁ from Fig. 1.1 and θ₂ from Fig. 1.3, calculate the specific heat capacity cₘ of the 50 g mass: cₘ = 4.2(θ₂ − θ₁) / . Give J/(g °C).
Fig. 1.1Fig. 1.3
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[1 mark]
(c)(i)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Describe two distinct sources of error in this method of determining cₘ.
Describe two distinct sources of error in this method of determining cₘ.
Fig. 1.2
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[2 marks]
(c)(ii)Read question and case materials as text
Text can be resized with your browser. Refer to the original figures below for diagrams and their layout.
A student investigates specific heat capacity. A 50 g heated metal mass is transferred from boiling water into 25 cm³ of water in a beaker. Fig. 1.2 shows the apparatus.
Suggest two distinct improvements to reduce errors in the method.
Suggest two distinct improvements to reduce errors in the method.
Fig. 1.2
Answer guidance
Suggest More than one answer may be acceptable, so long as it is consistent with the physics.
[2 marks]
5054/41/M/J/23Cambridge O Level Physics 5054 · May/June 2023 · Paper 4 variant 1 · Question 1