Question 1:
Diagram 1.1 and Diagram 1.2 show an experiment to study the heat conductivity between metal and non-metal.
Table shows the time taken for the thumb-tack to fall after both rods are heated.
(a) State one hypothesis for this experiment. [1 mark]
(b) State the variables in this experiment.
(i) Constant variable [1 mark]
(ii) Manipulated variable [1 mark]
(c) Based on the Table, which rod is good heat conductor? [1 mark]
(d) Glass is a non-metal substances. Based on this experiment, state the operational definition for non-metal. [1 mark]
Answer:
(a) Metals are better heat conductors than non-metals.
(b)(i) The distance between the thumb-tack and the flame, size of the flame
(b)(ii) Types of rod
(c) Copper rod
(d) Non-metal is defined operationally as a poor heat conductor.
Diagram 1.1 and Diagram 1.2 show an experiment to study the heat conductivity between metal and non-metal.
Table shows the time taken for the thumb-tack to fall after both rods are heated.
(a) State one hypothesis for this experiment. [1 mark]
(b) State the variables in this experiment.
(i) Constant variable [1 mark]
(ii) Manipulated variable [1 mark]
(c) Based on the Table, which rod is good heat conductor? [1 mark]
(d) Glass is a non-metal substances. Based on this experiment, state the operational definition for non-metal. [1 mark]
Answer:
(a) Metals are better heat conductors than non-metals.
(b)(i) The distance between the thumb-tack and the flame, size of the flame
(b)(ii) Types of rod
(c) Copper rod
(d) Non-metal is defined operationally as a poor heat conductor.