1_1.) What is motion?
a. It is the measure of how far or near two points are from one another.
b. It is an important factor in measuring if the object has moved or not.
C. It is a change in position with respect to a reference point.
d. It is the measure of how far two points are from one another.
2.) What factor controls the movement of an object?
a. Its frame of reference
b. its position
c. its direction
d. its movement
3.) A biker covers a distance of 150 km in five hours. What is the biker's average speed?
a. 15 km/hr
b. 30 km/hr
C. 45 km/hr
d. 60 km/hr
4.) A cyclist travels 40 kilometers in 2 hours, what is the average speed?
a. 80 km/hr
b. 60 km/hr
c. 20 km/hr
d. 10 km/hr
5.) What is the basic unit for measuring distance?
a. hour
b. meter
C. second
millimeter
6.) What is the process or action by which one thing absorbs or is absorbed by another and not reflecting it back?
a. absorption
b. reflection
c. refraction
d. transmission
7.) A mirror has a unique characteristic that lets us see our mirror image. What characteristic is it?
a. absorption
b. reflection
c. transmission
d. refraction
8.) Which object composed of transparent materials?
a. flower
b. magnifying lens c. white sock
d. tinted window
9.) Which group of objects composed of opaque materials?
a. glass of water, ceramic mug
c. plastic cup, toothbrush, toothpaste
b. glass center table, tree, book
d. lenses, plastic cover, book
10.) What are materials that allow small amount of light to pass through?
a. transparent materials
b. translucent materials
C. opaque materials
d. dark materials
11.) What do you call those materials that allow the flow of electricity?
a. flammable
b. insulators
C. connectors
d. conductors
12.) Why is electrical wiring usually covered with a layer of plastic?
a. To help electricity to flow along the wire
c.to make it stronger
b. To make it look more beautiful
d. to make it safe
13.) Which of the following is an insulator?
a. scissors
b. iron nail
C. rubber mat
d. wood
14.) What refers to the complete path that allows free flow of electricity?
a. battery
b. circuit
c. electricity
d. magnet
15.) Which is not part of an electric circuit?
a. bulb
b. magnet
C. switch
d. wires
16.) Which material can be a core for an electromagnet?
a, iron nail
b. copper
c. plastic
d. cotton
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Answer:
1.C
2.A
3.B
4.C
5.D
6.C
7.B
8.B
9.?
10.?
11.D
12.D
13.C
14.B
15.B
16.A
Explanation:
brainliest
2.)— 5.) (sorry i don’t know this)
6.) a.
7.) b.
8.) b.
9.) c. (plastic cup, toothbrush, toothpaste)
10.) b.
11.) d.
12.)—13.) (sorry i don’t know this)
14.) b.
15.) b.
16.) a.