Directions: Read and understand the questions below. Choose and encircle the letter of the best answer. D. motion 1. It is the change of an object's position over the change of time. A. position B. motion c. speed D. location 2. A numerical description of how far the objects from each other. A. distance B. reference point C. speed 3. Which of the following is abasic unit of distance? A. inch B. feet C. meter D. yard 4. Which is the reference point of a boy leaving fromhome to school? A. canteen B. classroom C. home D. school ground 5. Which of the following shows motion? A. a boy watching TV c. a dog barking at strangers B. pillows on bed D. a mother going to market 6. A car traveled 30 kilometers for 2 hours, what is its speed? A. 15.0km/h B. 28.0km/h C. 30.0km/h D. 60.0km/h 7. Which of the following demonstrates motion? A. A boy jogging in place C. A dog barking at the garage B. A girl running towards his father D. A boy running on a treadmill device 8. Why do we need measuringdevice to measurelength or distance? A. To have an accurate data B. To be familiar with the use of each tools C. To have experience using tools like ruler, meter stick, tape measure, etc. D. None of the above 9. Why do we need to use the metric system of measurement? A. Because it is used by many scientists. B. Because it is important to describe motion. C. Because it is necessary to describe movement. D. Because it is easier to understand each other's data. 10. How can a biker travel a great distance in a specified time? A. Pedal faster to increase the speed of the bike B. Pedal slowly to decrease the speed of the bike C. Increase the distance it will cover in the same time allotment D. Pedal faster to increase the distance it will take in a specified time. 11. Which of the following does NOT belong to the group? A. aluminum B. copper C. plastic D. iron 12. Some materials which allow electric current to flow through them are called A. insulators B. convectors C. conductors D. radiators 13. Materials that block electric current from flowing are called A. insulators B. convectors C. metal D. copper 14. Why electric wires are usually made up of copper? A. Copper is a good insulator. C. Copper is a good conductor. B. Copper is a poor insulator. D. Copper is a poor conductor. 15. Which of the following is an insulator? A. iron B. rubber C. water D. aluminum 16. Cooking pans are usually made of aluminum and stainless steel because_ A. Aluminum and stainless steel are good conductors of heat. B. Aluminum and stainless steel are good conductors of electricity. C. Aluminum and stainless steel have very high density. D. Aluminum and stainless steel are very strong. 17. You can protect yourself from the harmful effects of conductors by using A. conductors B. convectors C. radiators D. insulators​