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GenSci Lesson 1-3
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Explain what is an inclined plane.
A flat surface that is in a slope
Which parts of a bicycle demonstrate both rotational and translational motion?
Pedal & Chain
What is the rate of change of angular velocity?
Angular acceleration
What must the dancer do to achieve maximum angular velocity while spinning?
Pull arms close to body
What machine that has a physics concept that utilizes soundwave to see internal objects?
Ultrasound
What physics concept explains why seatbelts save lives during a sudden car crash?
Inertia
Which physics principle is primarily responsible for the cooling effect of a household refrigerator?
Thermodynamics
What happens to your angular velocity if you pull your arms inwards?
It increases
Compound machines have a goal to minimize ___ ___ and maximize output work.
Energy loss
TRUE or FALSE: Rotational motion is important in machines because it removes the need for force.
FALSE
What type of motion is mainly utilized in a bicycle wheel just turning?
Rotational Motion
What is the turning force that causes rotation called?
Torque
Which combination of simple machines is found in a pair of scissors?
Lever and a Wedge
Which simple machine is most efficient for lifting heavy objects vertically?
Pulley
Explain what is Translational Motion?
An object that moves from one place to another.
What is rotational motion?
An object that rotates arounds its axis
Which unit is standardly used to measure angular displacement?
Radian
Why do chefs prefer copper-bottom pans for cooking?
It is a good heat conductor
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