Gravity and Air Resistance

Which two of these forces act on parachutes?

• Air Resistance

• Gravity

• Thrust

• Kinetic Energy

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What keeps the planets in orbit around the sun?

• gravity

• friction

• density

• distance

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A brick and a pencil are dropped at the same time from the same height. Which one would hit the ground first?

• brick

• pencil

• both would hit at the same time

When will the forces of gravity between two objects be the GREATEST?

• when the masses of both objects are small and the objects are far apart

• when the masses of both objects are large and the objects are close together

• when the masses of both objects are small and the objects are close together

• when the masses of both objects are large and the objects are far apart

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These skydivers are experiencing what two forces?

• electricity and magnetism

• gravity and tension

• air resistance and gravity

• gravity and normal force

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When a skydive jumps from an airplane ​ ​ (a)   pulls them down. When they release their parachute they will fall slower due to ​ (b)   . The parachute encounters more ​ (c)   then the skydiver because it has more ​ (d)   .

• gravity

• air resistance

• surface area

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These 2 skydivers are experiencing what 2 forces?

• Magnetism & electricity

• Tension & gravity

• Gravity & air resistance

• Air resistance & magnetism

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This person is showing an example of....

• Friction

• air resistance

• force

• energy

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The ___________ on an open parachute balances the force of gravity on the sky diver when the parachute is falling slowly.

a

Weight

Friction

Gravity

Force of air resistance

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This plane is using _______ during its flight, take off, and landing.

• Friction

• air resistance

• push

• pull

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