science
Grade8
Easy
Question
An object performing a uniform circular motion is under the action of _____.
- Balanced forces
- Unbalanced forces
- Both balanced and unbalanced forces
- None of the above
Hint:
An object performing a uniform circular motion is under the action of unbalanced forces.
The correct answer is: Unbalanced forces
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Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:
Sand |
Water |
|
Before placing the bowls in the sunlight |
370C |
300C |
After keeping the bowls in the sunlight for one hour |
370C |
320C |
After keeping the bowl inside the house for one hour |
310C |
310C |
Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:
Sand |
Water |
|
Before placing the bowls in the sunlight |
370C |
300C |
After keeping the bowls in the sunlight for one hour |
370C |
320C |
After keeping the bowl inside the house for one hour |
310C |
310C |
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