1G1 Science Quiz based on SLS Chapter 5 Heat lesson

Which is a unit of temperature?

• centimetre (cm)

• degree Celsius (°C)

• millilitre (mL)

• second (s)

• Kelvin (k)

Which statement about heat is correct?

• Heat is the same as temperature.

• When an object gains heat, its temperature decreases.

• Heat is a form of energy that flows from a region of higher temperature to a region of lower temperature.

   

• An object at a lower temperature has more heat energy than the same object at a higher temperature.

A cup is taken from an air-conditioned room and placed under the hot sun. The cup gains ​ (a)   and its ​ ​ (b)   increases.

• heat
• temperature
• humidity
• weight
• color change
• volume

Three students were asked to describe temperature in their own words. Which student's response best describes temperature?

• Alfred: "Temperature tells us how quickly an object becomes hot or cold."

• Brandon: "Temperature tells us the amount of heat energy an object has."

• Charles: "Temperature tells us how hot or cold an object is."

A cold spoon is placed inside a cup of hot lemon tea. Which of the following is correct?

• Heat energy flows from the spoon to the tea.

• Heat energy flows from the tea to the spoon.

• Temperature flows from the spoon to the tea.

• Temperature flows from the tea to the spoon.

What is the name of the device that make use of expansion and contraction of solids?

Name the device that keeps the temperature of appliances within a desired range

Name some uses of thermostat in our daily lives.

Briefly describe how we overcome problems caused by expansion and contraction.

Which of the following are useful applications of expansion and contraction?

• Using a laboratory thermometer to measure temperature.

• Overhead cables contracting on a cold day and expanding on a hot day.

• Using a thermostat with a bimetallic strip to maintain the temperature of an oven.

• Railway tracks expanding and buckling on a hot day.