Science 6 Review Activity

the force that oppose motion between surfaces as they move over each other.

• Gravity
• Friction
• Work

the measure of how much matter there is in an object.

• Mass
• Weight
• Work

Once the gravitational force changes, it also changes.

• Mass
• Weight
• Height

Ceiling fan- from electrical to ________

• Chemical
• Sound
• Mechanical

What is the term for the idea that matter and energy can neither be created nor destroyed, only changed from one form to another.

• Law of gravitational force
• Law of Conservation of Energy
• Law of acceleration

defines as force acting through a distance.

• Friction
• Gravity
• Work

Which of the following helps people do work which requires less effort?

• device
• equipment
• simple machines

Allan uses the ramp to help his sick friend on a wheelchair to move up the building. A ramp is an example of a/an _________

• inclined palne
• pulley
• lever

Eva helps her mother to slice the vegetables using a knife. A knife is an example of a _______

• screw
• wedge
• pulley

Tong is an example ________

• lever
• wedge
• wheel and axle