What is the primary method used to calculate the speed of an object just before it hits the ground?

Conservation of Energy Concepts

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Physics
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Momentum conservation
Newton's laws
Conservation of energy
Kinematic equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the final velocity of an object dropped from a height?
v = 1/2 mv^2
v = sqrt(2gh)
v = mgh
v = gt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an object is thrown upwards, what additional factor is considered in the final velocity calculation?
Air resistance
Initial speed
Mass of the object
Initial height
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the initial speed affect the final velocity when an object is thrown upwards?
It decreases the final velocity
It increases the final velocity
It changes the direction of the final velocity
It has no effect
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the angle at which an object is thrown in determining its final speed?
It determines the final speed
It changes the mass of the object
It has no effect on the final speed
It affects the potential energy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the final speed of an object independent of the angle at which it is thrown?
Because of air resistance
Because of gravitational force
Because energy is a scalar quantity
Because energy is a vector quantity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the conservation of energy principle state about initial and final energy?
Initial energy is always greater
Energy is lost during motion
Final energy is always greater
Initial energy equals final energy
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