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WorksheetsHEAT AND MOTION AND TIME grade 7
Total questions: 10
Worksheet time: 6mins
In Which Of The Statement Is Or Are Correct About “Thermometer”?
Don’t hold the thermometer by the bulb
Don’t washed thermometer by any liquid
Don’t jerks the thermometer before use
Don’t use clinical thermometer for the person who works in sunlight
In Which Of The Following Statement Is Or Are Incorrect?
Heat is a form of energy.
Heat flows from one object to another object when there is a difference in temperature.
In the transmission of heat total amount of heat remains unchanged.
None of the above
Stainless Steel Pans Are Usually Provided With Copper Bottoms. The Reason For This Could Be
Copper is a better conductor of heat than the stainless steel
Such pans appear colorful
Copper bottom makes the pan more durable
Copper is easier to clean than the stainless steel
One Litre Of Water At 30 Degree Celsius Is Mixed With One Litre Of Water At 50 Degree Celsius. The Temperature Of The Mixture Will Be
80 degree Celsius
More than 50 degree Celsius but less than 80 degree Celsius
20 degree Celsius
Between 30 degree Celsius and 50 degree Celsius
Rita Has Three Thermometers. She Wants To Measure The Temperature Of Her Body And That Of Boiling Water. Which Thermometer(S) Should She Choose?
Clinical thermometer for measuring body temperature and laboratory thermometer for measuring the temperature of boiling water
Clinical thermometer for measuring temperature of both.
Laboratory thermometer for measuring temperature of both.
Digital thermometer for measuring temperature of both.
A bus travels 54 km in 90 minutes. The speed of the bus is
0.6 m/s
10 m/s
5.4 m/s
3.6 m/s
Nearly all the clocks make use of
rectilinear motion
periodic motion
random motion
circular motion
Ram walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is
8.3
7.2
5
3.6
If a body covers equal distances in equal interval of time, the body is said to be in..........
Uniform motion
Non uniform motion
Stationary
None of these
Which of the following examples is related to rectilinear motion?
Movement of Earth around the sun
A car moving on a straight road
Motion of the hands of a clock
The needle in a sewing machine
