Grade 6 Science Test

What is static friction?

• friction between a rolling object and the surface that it is rolling on

• friction is friction where an object rubs against another surface

• friction of something going through any type of liquid or air

• The friction between two objects that are not moving

Why do electricians always wrap wires in plastic?

answer choices

• (a) Plastic comes in many different colours

• (b) Plastic is a good electrical conductor

• (c) Plastic makes the wires easy to bend

• (d) Plastic is a good electrical insulator

Which of the following items would conduct electricity?

• (a) Plastic ladder

• (b) Metal screwdriver

• (c) Wooden baseball bat

• (d)Rubber flip flops

Which of these materials is a good conductor of electricity?

• (a) Metal

• (b) Newspaper

• (c) Glass

• (d) Rubber

Tags

NGSS.MS-PS2-3

The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?

• (a) The switch produced an electric current

• (b) Closing the switch broke the circuit

• (c) Closing the switch completed the circuit

• (d) The switch did not make a difference

A _____ is a(a) force

• pull or a push.

• (b) friction

• (c) gravity

• (d) speed

Tags

NGSS.MS-PS2-1

One way that a force can cause the change in an object's motion is to...

• (a) do nothing.

• (b)eat ice cream.

• (c) start the object moving.

• (d) shine on the object.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What force moves an object away from you?

• (a) pull

• (b) push

Tags

NGSS.MS-PS2-1

Why is there less friction between two ice cubes touching than between sandpaper on wood?

.

• (a)Ice cubeshave rough surfaces

• (b) Ice cubes have loud surfaces.

• (c) Ice cubes have smooth surfaces.

• (d) Ice cubes have bright surfaces.

How does friction help us move from place to place?

• (a) Friction does not help us.

• (b) Friction keeps us from slipping and sliding.

• (c) Friction only helps cats.

• (d) Friction makes us slip and fall.