and Answers | Latest Version |
2025/2026 | Correct & Verified
What is the main function of the circulatory system in the human body?
✔✔To transport blood, oxygen, and nutrients throughout the body.
Why does a pulley make lifting easier?
✔✔It changes the direction of the force and can reduce the amount of force needed.
How many degrees are in a right angle?
✔✔90 degrees.
What is the purpose of a fuse in an electrical circuit?
✔✔To protect the circuit by breaking the flow if the current becomes too high.
Why does metal conduct electricity well?
✔✔Because its electrons move freely between atoms.
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, What is the square root of 144?
✔✔12.
Why is oil used in an engine?
✔✔To reduce friction and cool moving parts.
If a car travels 60 miles in 1 hour, how far will it travel in 4 hours at the same speed?
✔✔240 miles.
Which tool is best for measuring the diameter of a bolt?
✔✔Caliper.
Why do objects fall to the ground when dropped?
✔✔Because of Earth’s gravitational pull.
Which gas do plants absorb from the air for photosynthesis?
✔✔Carbon dioxide.
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