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Physics

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Webster Gutkowski

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Cards in this guide (13)
Which of these is an example of free fall

an astronaut floating in a space ship

A car travels 65 km in 1 hour What is its average speed in meters per second

18 m/s

Which two factors determine speed of motion

Speed of motion is determined by time and distance.

The acceleration of an object depends on the force exerted on which of these

an object's mass

Motor oil is used as a lubricant and replaces sliding friction to create which type of friction

fluid friction


Motor oil replaces sliding friction with fluid friction.Motor oil is used as a lubricant and replaces the sliding friction to create a type of friction known as fluid friction.
What is needed to determine whether an object is in motion

A Reference Point A reference point is needed to determine if an object is in motion.

More force must be applied when pushing something across a rough surface

TRUEFriction is the reason more force is needed to push an object across a rough surface.

Which of these is the best example of transfer of momentum

Which of what ? There's no list of choices, no examples,

no suggestions, nothing to choose from.

When would you expect a tie in a tug of war

when net force is zero

What are some components of Newton's second law of motion

force, mass, and acceleration

What force can be felt be felt when you put hand out the window of a moving car

Resistance from air.

What would you expect to accelerate most

A small mass with a lot of force applied.

Is it true that momentum is not equal to the mass of an object divided by its velocity

That is true because momentum is mass times velocity

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