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WorksheetsGrade 7 MT Exam
Total questions: 24
Worksheet time: 15mins
What is the primary unit of energy in the International System of Units (SI)?
Watt (W)
Joule (J)
Calorie (cal)
Newton (N)
What type of thermometer measures temperature by observing gas pressure changes?
Liquid-in-glass thermometer
Platinum resistance thermometer
Constant pressure gas thermometer
Infrared thermometer
What is the main source of heat energy on Earth?
The Moon
The Sun
Fossil fuels
Volcanoes
Which of the following represents the energy transferred due to temperature differences?
Kinetic energy
Heat energy
Electrical energy
Potential energy
Which thermometer is specifically used to measure body temperature?
Pyrometer
Clinical thermometer
Infrared thermometer
Thermocouple thermometer
What type of energy is stored in the bonds of chemical compounds?
Kinetic energy
Chemical energy
Thermal energy
Nuclear energy
Which energy transformation occurs in solar panels?
Kinetic to electrical
Solar to electrical
Chemical to thermal
Electrical to mechanical
What unit is used to measure the energy provided by food?
Joule
Watt
Calorie
Volt
What formula is used to convert Celsius to Kelvin?
K = °C × 273.15
K = °C - 273.15
K = °C + 273.15
K = °C / 273.15
What is the energy generated by the movement of electrons called?
Heat energy
Potential energy
Electrical energy
Elastic energy
What type of thermometer uses liquid crystals to measure temperature?
Clinical thermometer
Liquid-in-glass thermometer
Liquid crystal thermometer
Thermocouple thermometer
Which thermometer measures temperature without contact?
Infrared thermometer
Clinical thermometer
Liquid-in-glass thermometer
Platinum resistance thermometer
Which type of energy is found in hot objects?
Chemical energy
Elastic energy
Heat energy
Kinetic energy
What is the formula to convert Fahrenheit to Celsius?
°C = 9/5 (°F - 32)
°C = (°F - 32) × 5/9
°C = °F + 273.15
°C = (°F × 5/9) - 32
Which thermometer is used to measure high temperatures in industrial settings?
Pyrometer thermometer
Infrared thermometer
Liquid-in-glass thermometer
Thermocouple thermometer
What does the Law of Conservation of Energy state?
Energy can be created but not destroyed.
Energy can neither be created nor destroyed, only transformed.
Energy is always destroyed after work is done.
Energy only exists in mechanical forms.
Which of the following is an example of elastic potential energy?
A stretched rubber band
A running car
A ball bouncing
A solar panel absorbing light
What does temperature measure?
The energy of electrons
The degree of hotness of an object
The energy in food
The speed of molecules
What is the formula to convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32
°F = (°C × 5/9) + 32
°F = °C - 273.15
°F = (°C + 32) × 5/9
Which type of thermometer measures temperature using the electrical resistance of platinum?
Pyrometer thermometer
Platinum resistance thermometer
Clinical thermometer
Liquid crystal thermometer
Which of the following is NOT an example of chemical energy?
A glow stick
A battery
A rock about to fall off a cliff
A burning match
A battery transforms:
Chemical energy into electrical energy
Chemical energy into kinetic energy
Electrical energy into chemical energy
Electrical energy into kinetic energy
What is energy?
The ability to perform work or produce changes
A type of food
A kind of animal
A type of weather
What do solar panels convert sunlight into?
Water
Electrical energy
Food
Wind
