Summative Test in Science - Motion

What pitch of sound produced by a thick string compared to a thin string of the same length and tightness?

• Higher pitch

• Lower pitch

• lower than higher pitch

• the same pitch

Which is NOT true about wave propagation?

• Wave carries energy.

• Waves are not moving.

• Wave travels through a medium.

• Wave propagated through alternately vibrating particles of the medium.

Which electromagnetic waves enable humans to see?

• Visible light

• X-ray

• Radio waves

• Infrared

Which color of light has the shortest wavelength?

• Blue

• Orange

• REd

• Violet

Which color of light has the longest wavelength?

• Blue

• Orange

• REd

• Violet

Which of the following is a proof that light travels in a straight line?

• Formation of colors

• Formation of clouds

• Formation of rainbows

• Formation of shadows

How does heat travel through the soup?

• Conduction

• Convection

• Dispersion

• Radiation

What is the direction of the heat flow when you touch a piece of ice with your finger?

• from your finger to the ice

• from the ice to your finger

• both ways

• energy does not flow

Your friend was electrocuted accidentally. Where would you NOT grab him so you could save him without you being electrocuted too?

• by the hair

• by his silver bracelet

• by his cotton jacket

• by her rubber shoes

How do you describe an atom having the same number of protons and electrons?

• Positively-charged

• Uncharged

• Negatively-charged

• Both a and c