Science Review

The inner core is ____________.

• solid

• molten

• unknown

• liquid

Which type of force(s) will cause a change in an object's motion?

• gravity

• zero net force

• balanced forces

• unbalanced forces

Tags

NGSS.MS-PS2-2

friction is a force that acts 

• in the same direction as the motion

• opposite to the direction of the motion

• opposite to the applied forces

• the same direction as the applied force

What is the name for a push or pull?

• movement

• force

• Speed

• Density

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 

• feathers 

• iron

• same

• depends on their friction

Tags

NGSS.MS-PS2-2

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

• 20N 

• 40N 

• 10N 

• 70N

Tags

NGSS.MS-PS2-1

What Unit do we Measure Force in? 

• Newtons

• Joules

• Force

• Don't know

What is another word for Natural Selection?

• also known as phyletic gradualism

• also known as survival of the fittest

• also known as the Law of Use and Disuse

Tags

NGSS.MS-LS4-4

Evolution was also called by Charles Darwin...

• The Law of Use and Disuse

• Phyletic Gradualism

• Descent with Modifications

Tags

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NGSS.MS-LS4-4

What is a Scientific Theory?

• an inherited characteristic that increase an organisms chance of survival in its habitat

• a descriptive generalization of how the physical world behaves

• a well-substantiated explanation that incorporates facts, laws, inferences, and tested hypothesis all together