Transformation of Energy
Variables
Force
Light
Random
100
Name the type of energy in the picture
Mechanical
100
Definition: Any factor in a lab that can change or be measured.
Answer: Variable
100
A spring scale uses the force of __________ to help measure the weight of various objects
A spring scale uses the force of __GRAVITY__ to help measure the weight of various objects
100
Light travels in a ______________ until it strikes something shiny and _______________ back.
Light travels in a _STRAIGHT LINE____ until it strikes something shiny and __BOUNCES____ back.
100
When only some light passes through an object; the object is classified as...
Translucent
200
A lamp will transfer energy from ____________ to ______________.
A lamp will transfer energy from _ELECTRICAL__ to _LIGHT___.
200
The variable in a lab we change is called....
The independent variable
200
Which direction will the balloon car travel?
to the right
200
The light ray is showing what kind of Light behavior?
Reflection
200
A tool used to refract light and make rainbows is called a
prism
300
A lawn mower transforms energy when the person pushes it around. What types of energy would we see with this example?
Mechanical and Sound
300
The variable in the lab we measure or observe as an outcome is called...
The dependent variable
300
If the soccer player kicks the ball with more force, what can we expect to happen to the motion of the ball?
It will increase in speed and keep moving forward.
300
Name an object that will
1. Reflect light
2. Refract light
3. Absorb light
Various examples
1. Anything shiny
2. Anything see through
3. Anything opaque
300
An unbalanced force will result in motion. Describe an example of an unbalanced force during a soccer game
A player running
The ball rolling
Kicking the ball
Throwing the ball into play
400
Mr. Martin wants to fix a broken fence post. He has a hammer and nails. When he hits the nails with his hammer, he is transferring energy from his _______ to the _________
he is transferring energy from his _ARMS/ HANDS_ to the _NAIL__
400
We want to test how FRICTION slows down and eventually stops a moving car. What variable should we change?
the car
the surface
the ramp
the height of the ramp
The surface
400
What do you think the students are testing?
How MASS affects the amount of force pulling on the spring.
400
Label the different behaviors of light
1. reflection
2. Transmit
3. Absorb
4. Refraction
400
This picture demonstrates which behavior of light
Refraction
500
A balloon rocket uses the force of _______ to make it move. This is a transfer of ____________ energy.
A balloon rocket uses the force of _AIR_ to make it move. This is a transfer of _MECHANICAL__ energy.
500
What is the independent variable in this lab set up
height of ramp
500
A pulley helps lift heavy items by changing the direction ___________ is applied. Instead of lifting up, you can use _________ to pull down.
A pulley helps lift heavy items by changing the direction __FORCE__ is applied. Instead of lifting up, you can use _GRAVITY_ to pull down.
500
Refraction is the bending of light as is passes through a ___________. Refraction CANNOT happen when the object is ___________.
Refraction is the bending of light as is passes through a _MEDIUM__. Refraction CANNOT happen when the object is _OPAQUE___.
500
True or False.
An object sitting still has energy but it needs a greater force to make it move.
True