Science 6 Third Quarter Examination

A car moves smoothly on a road. What type of friction is acting between the tires and the road?

• Fluid Friction

• Rolling Friction

• Sliding Friction

• Static Friction

What type of friction is demonstrated when you place your notebook on a table and it remains still?

• Fluid Friction

• Rolling Friction

• Sliding Friction

• Static Friction

Which of the following is the best example of gravity?

• A breeze blows, and a sailboat moves.

• A car hits a tree, and its motion stops.

• A person drops a ball, and it falls to the ground.

• A book is pushed and moves across the table.

Which of the following demonstrates the presence of gravity?

• A car hits a tree.

• A ball rolling on a flat floor.

• A balloon floating in the air.

• The roots of a plant growing downward.

Anna loves to sing while playing her favorite song on a videoke machine. What energy transformation occurs in the videoke machine?

• Electrical to heat energy

• Electrical to sound energy

• Electrical to mechanical energy

• Electrical to chemical energy

Which of the following devices transforms sound into heat energy?

• Flashlight

• Oven

• Refrigerator

• Stereo

What energy transformation occurs when a spark plug operates?

• Light to heat

• Chemical to light

• Electrical to light

• Mechanical to heat

Which is the correct energy transformation existing in a television set?

• Electrical → Light → Sound

• Electrical → Sound → Light

• Electrical → Light → Mechanical → Sound

• Electrical → Mechanical → Light → Sound

A seesaw on a playground is an example of what type of simple machine?

• Lever

• Screw

• Wedge

• Wheel and Axle

Which simple machine consists of sloping surface that reduces the amount of force needed to lift something?

• Inclined Plane

• Lever

• Pulley

• Wheel and Axle