Conservation of Energy Concepts

Conservation of Energy Concepts

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explores the concept of energy conservation in the context of free-falling objects. Initially, it demonstrates how to calculate the final speed of an object dropped from a height using energy conservation principles. The tutorial then modifies the scenario by throwing the object upwards and calculates the final speed when it returns to the ground. It further discusses the effect of launch angle on the final speed, emphasizing that energy conservation is independent of direction. The tutorial highlights the simplicity and effectiveness of using energy conservation to solve kinematic problems.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

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

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?