Science Review

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

• gravity
• zero net force
• balanced forces
• unbalanced forces

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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

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?

• A movement
• A force
• Speed
• Density

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the name for a push or pull?

• A movement
• A 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

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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

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NGSS.MS-PS2-1

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

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Who is Charles Darwin ?

• the ship that many scientists and naturalist traveled upon when making many discoveries about different species

• a famous naturalist who described Natural Selection as the mechanism behind evolution. He traveled around Southeast Asia only making many observations.

• a famous naturalist who was the FIRST to describe Natural Selection as the mechanism behind evolution, from his observations in the Galapagos.

Tags

NGSS.HS-LS4-1

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