Physical Science Forces & Newton's Laws

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

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An Orange falls off a tree and lands on the ground. What force caused the orange to fall?

• friction

• heat

• gravity

• wind

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Friction acts in a direction __________ to the direction of the object’s motion.   

• Side By Side
• Parallel Directions
•  Opposite
• The Same Direction

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

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Gravity affects which of the following?

• Mass
• Weight
• Density
• Mass and Weight

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A force that resists motion between two surfaces that are pressed together.

• Spring Force

• Normal Force

• Friction Force

Force is measured in a unit called (a)   .

What is the type of contact force that is being described?

Your hand being pulled backwards as you stick it out of the window of a moving car.

• Applied Force

• Normal Force

• Friction

• Air Resistance

The upward force acting on the parachute is called ______________.

• Force of friction

• Force of gravity

• Normal force

• Air resistance

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Which is NOT true about forces and Newton's 3rd law?

• come in pairs

• equal size

• same direction

• opposite direction

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