Energy Transformations

Energy Transformations

8th Grade

14 Qs

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Energy Transformations

Energy Transformations

Assessment

Quiz

Science, Physics

8th Grade

Easy

Created by

Michael Cashin

Used 100+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The Theory of the Conservation of Energy states -

Energy can be created, just not destroyed. It changes its form from one type to another.
Energy can never be created nor destroyed. It can only change its form from one type to another.
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Energy transformations occur when...

energy is created through conduction
energy changes from one form to another
two forces slide together that are touching
a chemical reaction takes place

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?

A triple beam balance measuring an object’s mass.
A pencil sharpener plugged into a wall outlet.
A projector displaying a diagram on the screen.
A working flashlight used to light up a dark corner.

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which type of energy transformation occurs when a flashlight shines?

chemical → thermal → electrical
chemical → electrical → light
thermal → chemical → light
chemical → electrical → chemical

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?

electrical → light → mechanical
chemical → mechanical → electrical
mechanical → chemical → light
mechanical → electrical → light

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb that gets hot, causing it to glow. What energy transformations are taking place?

chemical → light → electrical

mechanical → sound → light

thermal → solar → electrical

electrical → thermal → light

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?

chemical → thermal
light → chemical
thermal → light
chemical → electrical

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