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Physics UTME / JAMB 1981 Thermal Physics
a balloon inflated with helium gas at ground level is released. As it rises through a constant temperature atmosphere.
A
its pressuren reduces but volume remains constant
B
te product of pressure and volume remains constant
C
both pressure and volume increases
D
its pressure remains constant but the volume decreases
E
both pressure and volume remains constant
medium Difficulty
Physics UTME / JAMB 1981 Thermal Physics
Change of state is accompanied by change of?
A
temperature
B
volume
C
heat content
D
temperature and volume
E
volume and heat content
medium Difficulty
Physics UTME / JAMB 1981 Thermal Physics
A liquid-in-glass thermometer should quickly register temperature changes. This is achieved by choosing a liquid that
A
is opaque
B
has high density
C
has regular expansion
D
has a high thermal conductivity
E
can wet glass
medium Difficulty
Physics UTME / JAMB 1981 Thermal Physics
If I is the current passing through a metallic resistor and H is the rate of Heat generated in the resistor at a constant temperature, then
A
H \(\alpha\) \(\frac{1}{I}\)
B
H \(\alpha\) \(\frac{1}{I^2}\)
C
H \(\alpha\) \(\sqrt1\)
D
H \(\alpha\) I2
E
none of the above
medium Difficulty
Physics UTME / JAMB 1980 Thermal Physics
A given quantity of heat increases the temperature of 150grams of water from 9oC to 15oC and increases the temperature of oil of 100grams from 9oC to 25oC. The ratio of the specific heat of oil to that of water is
A
0.36
B
0.46
C
0.56
D
0.76
E
0.86
medium Difficulty
Physics UTME / JAMB 1980 Thermal Physics
Which of the following radiations cannot be deflected by a magnetic field?
A
\(\alpha\)
B
\(\beta\)
C
\(\gamma\)
D
\(\beta\) and \(\gamma\)
E
none of them
medium Difficulty
Physics UTME / JAMB 1980 Thermal Physics
a calorimeter of thermal capacity 80j contains 20g of water at 25oC. Water at 100oC is added so that the final temperature of the set-ups is 50oC. The amount of water added is (Heat capacity of water = 4.18J/g/oC)
A
20g
B
25g
C
45g
D
50g
E
100g
medium Difficulty
Physics UTME / JAMB 1980 Thermal Physics
the ratio of the linear expansivity of copper to that of iron is approximately 1.5. A specimen of iron and a specimen of copper expands by the same amount per unit rise in temperature. The ratio of their length is
A
3
B
1.5
C
1.32
D
1
E
0.67
medium Difficulty
Physics UTME / JAMB 1980 Thermal Physics
Natural radioactivity consists of the emission of
A
\( \alpha \) -particle and \( \beta \) rays
B
\( \alpha \) -particle and X-rays
C
\( \gamma \)-rays and X-rays
D
\( \alpha \)-particle, \( \beta \) rays and \( \gamma \)-rays
E
\( \alpha \) -particle, \( \beta \) rays, \( \gamma \)-rays and X-rays
medium Difficulty
Physics UTME / JAMB 1979 Thermal Physics
The temperature at which the water vapour present in the air saturates the air and begins to condense is known as
A
boiling point
B
melting point
C
triple point
D
dew point
E
critical temperature
medium Difficulty
Physics UTME / JAMB 1979 Thermal Physics
Which of the following types of waves cannot travel through a vacuum?
A
sound waves
B
light waves
C
infra-red waves
D
x-radiation
E
radio waves
medium Difficulty
Physics UTME / JAMB 1979 Thermal Physics
In what range of temperature is the expansion of water anomalous?
A
+208oC to +212oC
B
-80oC + -76oC
C
-4oC to 0oC
D
+96oC to +100oC
E
0oC to +4oC
medium Difficulty
Physics UTME / JAMB 1979 Thermal Physics
The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in steam are 3cm and 18cm respectively. At a temperature of 60oC the height would be
A
7.5cm
B
9cm
C
10.8cm
D
12cm
E
12.6cm
medium Difficulty
Physics UTME / JAMB 1979 Thermal Physics
Consider a thick glass tumbler and a thin glass tumbler which are made of the same kind of glass. Some hot liquid is poured into them. Which of the following statements is correct?
A
the thick tumbler is less likely to crack because it is stronger
B
the thick tumbler is less likely to crack because it insulates the heat beter, glass being a poor conductor of heat
C
Both tumblers are equally likely to crack because they are made of the same kind of glass
D
the thick tumbler is more likely to crack because uneven expansion persists for a longer time within the thicker glass
E
the thick tumbler is more likely to crack because it is heavier
medium Difficulty
Physics UTME / JAMB 1978 Thermal Physics
The statements below were made by some students describing what happened during the determination of the melting point of solids. i. the temperature of the solid was solid until melting started ii. the temperature of the solid rose until melting started iii. during melting, the temperature was rising iv. during melting, the temperature was constant v. the temperature continued to rise after all the solid had melted vi. the temperature stopped rising after all the solid had melted. Which of the following gives correct statements in the right order?
A
ii, iv, and v
B
ii, iii and vi
C
i, iii and vi
D
i, iii and v
E
i, iv and v
medium Difficulty
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