Science Mind Challenge 5

Which of the following refers to the change in position with respect to a reference

             point?

• distance

• motion

• speed

• velocity

What standard unit of measurement is used for distance or length?

• kilogram

• kilometer

• pounds

• second

Which tool is used to measure the speed of a jeepney?

• rope

• ruler

• speedometer

• tape measure

What do travelers use to identify their direction?

• compass

• microscope

• pulley

• telescope

Which of the following is an insulator?

• pins

• scissors

• thumbtacks

• tissues

Mang Juan is a good driver. He always considers the speed limit when driving. Which

             of the following is not among his reasons for driving well?

• to improve children’s safety

• to brag that he can drive fast   

• to prevent unwanted road accident

• to avoid hefty fines, penalty points, and disqualifications from driving

Why are hibiscus flowers red?

• because all colors are absorbed

• because all the colors are reflected

• because only the red light is reflected

• because only the red light is absorbed

What material is produced when a coil of wire is wind around an iron nail?

• electricity

• electromagnet

• pulley

• valve

Which of the circuits will electromagnet works?

• close circuit

• short circuit

• open circuit

• broken circuit

D. Roel wants to increase the strength of an electromagnet. What should he do?

• Remove the iron core.

• Stop the flow of electricity.

• Increase the turns of the wire.            

• Decrease the amount of electric current.