Velocity and Energy Conservation Concepts

Velocity and Energy Conservation Concepts

Assessment

Interactive Video

Physics, Mathematics, Science

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains how to find the velocity of an object that has been dropped using the principle of conservation of energy. It begins with an introduction to the concept, followed by a detailed explanation of how potential energy is converted into kinetic energy. The tutorial then derives the formula for velocity and demonstrates its application with examples, concluding with a review of the key concepts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key difference between dropping and throwing an object in terms of initial velocity?

Throwing involves an initial velocity, while dropping does not.

Both involve the same initial velocity.

Neither involves any initial velocity.

Dropping involves an initial velocity, while throwing does not.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What principle is used to determine the velocity of a dropped object?

Conservation of Momentum

Newton's First Law

Conservation of Energy

Archimedes' Principle

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of energy conservation, what happens to the potential energy of a dropped object?

It remains constant.

It is converted into kinetic energy.

It is converted into thermal energy.

It is lost completely.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the mass of the object cancel out in the velocity formula derived from energy conservation?

Because the formula is incorrect.

Because mass appears on both sides of the equation.

Because mass is negligible compared to other factors.

Because mass is irrelevant in physics.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for velocity derived from the conservation of energy?

v = sqrt(2 * g * h)

v = g * h

v = 1/2 * g * h

v = 2 * g * h

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the standard value of acceleration due to gravity used in calculations?

8.91 m/s²

9.81 m/s²

11.81 m/s²

10.81 m/s²

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an object is dropped from a height of 10 meters, what is the approximate velocity when it strikes the ground?

16 m/s

10 m/s

12 m/s

14 m/s

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