Review ~ Forces and Motion

What are the 2 categories of force?

• Magnitude and direction

• mass and acceleration

• Speed and direction

• contact and non-contact

In the end, what caused the sailing stones to move?

• Aliens

• Strong winds

• Ice

• Friction

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What is an example of a contact force?

• Hitting a ball with baseball bat

• Gravity

• Magnetism

• Ball flying in the air

Friction opposes the ___ between ___

• Gravity; planets

• distance; objects

• movement; surfaces

• heat; objects

Which of the following are types of friction?

• Static

• Buoyant

• Fluid

• Stationary

Sky diving exemplifies

• Contact force

• Non-contact force

• Magnetism

• Static Friction

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Which requires more force to life?

• Pencil

• Apple

• Eraser

• Bowling ball

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Net force is the (a)   of all the forces acting on an object.

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Jimmy is pushing the sofa to the right while Timmy is pulling the sofa to the right. To find the net force you (a)   the forces.

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Hunter (left) is pulling the toy to the left, while Melissa (right) is pulling to the toy to the right. To find the net force on the you (a)   the forces.

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