Forces & Experimental Design
Physical Properties of Matter
Energy & Circuits
Light
Space
100
What is the result when equal forces act on an object in opposite directions (ex: pulling apart with the same force)?
The forces would be ____________.
The object would remain STILL or NOT MOVE.
The forces would be BALANCED.
100
A scrapyard is trying to separate trash piles quickly.
Most piles contain aluminum cans, steel nails, and copper pennies. Which of these objects can be pulled out quickly by using the property of magnetism?
Steel nails because they are magnetic.
100
What does CMELTS stand for?
Give an example of an object that converts
E —> M energy?
Chemical
Mechanical
Electrical
Light
Thermal
Sound
electrical (plugs/wires)—> mechanical (moving)
100
How does light travel?
In a straight line.
100
This movement causes the sun appear to move across the sky, causing sunrise, sunset; and day and night.
Name the movement and how long it takes.
The earth’s rotation. 24 hours or 1 day.
200
A car is rolled down a ramp and eventually comes to a stop on the floor. What are 2 forces acting on the car, and what do they do?
Gravity - pulls the car down the ramp (move faster)
Friction - slows down the car on the carpet/floor
200
A cup of warm water (125 g) has sugar cubes (25 g) and baby oil (50 g)added to it.
The sugar dissolves in the water, and the oil floats on top.
What is the total mass, NOT including the cup?
200 g
water + sugar cubes + baby oil
200
What energy transformation occurs between this loud tea kettle and the electric stove it is on? (Must have 3)
____________ —> ____________ —> ____________
Electrical —> Thermal —> Sound
200
Which of these mediums would create a dark shadow?
The opaque object.
200
This movement causes seasons to occur and change on earth.
Name the movement and how long it takes.
Earth’s revolution. 1 year, or 365 days.
300
A car is rolled down 2 different ramps, using the same car, surface, and measuring stick. What is the independent variable in this experiment?
Independent (IC - changed)
Height of the ramp
300
Which would be the BEST INSULATOR of electrical wires? Why?
Rubber - because it is an insulator, flexible, and will not cause a fire.
300
A & D will light up.
300
Sort these words as buzz words for Reflect and Refract:
lens, bounce, larger, shiny, smooth, bends, through
Reflect: bounce, shiny, smooth
Refract: lense, larger, bends, through
300
What would be the approximate date of the next FULL moon, according to this calendar?
Around August 16th.
400
3 groups of students make balloon rockets which use the force of the air exiting the balloon to measure how far the rocket moves along a string. Each group uses the same balloon, same string, and same straw, but different amounts of air.
What is the dependent variable?
Dependent (DM - measured)
distance traveled by the balloon rocket
400
List these objects in order from LEAST dense, to MOST dense.
Cork, Oil, Water
400
Which switches would you close and/or open?
Close: switches 2 & 3
Leave switch 1 open.
400
How do we see the yellow color of the plastic discs?
Yellow is ___________, the other colors are __________.
Yellow is reflected, the other colors are absorbed.
400
Identify the seasons of A, B, and C by analyzing the temperature and daylight hours.
A: Winter
B: Fall
C: Summer
500
What is the testable question for this experiment:
How does ___________ affect ______________?
How does the surface affect the force needed to move the cart/wagon?
500
How many of these objects are POOR INSULATORS of electrical energy?
Poor Insulators = Good Conductors
3: brass key, metal paperclip, iron needle
500
Which of these circuits would have multiple lights remain on, if one light went out?
100+ Bonus: Name this type of circuit
C - Parallel circuit
500
An apple is sitting on a table in a room no windows. When the door is shut, there is no light in the room. How would the apple appear to you?
*Hint: No light….*
You would not be able to see the apple. It would all be black.
*No light, no sight*
500
Which could be an accurate example of the moon phase sequence?
A
Light Leaves on the Left,
Grows Bright on the Right