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WorksheetsNSCAS-Forces & Scientific Method
Total questions: 35
Worksheet time: 25mins
If there are two forces going in opposite directions how would you find the net force?
Subtract
Add
Neither
Multiply
If both people are exerting a force of 30 N, what is the net force?
30 N
60 N
300 N
0 N
How do you find the net force of this image.
Add up all the arrows
Add a green arrow and the orange arrow.
Subtract all the arrows.
Add the green arrows and subtract the orange arrow.
What is the net force and to what direction.
210 N to the right
280 N to the right
110 N to the left
180 N to the left
What is Force?
A pull exerted on an object
A push exerted on an object
A push or pull exerted on an object
Nothing
What is causing the pith balls repel?
Electric Fields
Gravity
Magnetism
Kinetic Energy
What is going to happen to charges in the pictures?
Attract
Repel
If you rub silk on glass to take away electrons, the glass will become
Negative
Positive
What particle has a negative charge?
Protons
Electrons
Neutrons
What particle has a positive charge?
Protons
Electrons
Neutrons
Cherise sets identical magnetic carts on two tracks. At the end of each track is a blue magnet that cannot move. Cherise can move the carts one space to the left or one space to the right. Which movement will result in the largest increase in potential energy?
Moving the cart on Track 1 one space to the right (→).
Moving the cart on Track 2 one space to the left (←).
Moving the cart on Track 2 one space to the right (→).
All these movements will result in the same change in potential energy because they each move a cart the same distance.
Lucia is playing with magnetic toy vehicles. She has two identical toy vehicles (purple and pink) that start on opposite sides of a center magnet that cannot move. She moves both vehicles one space closer to the center magnet.
a. How did the potential energy of the two vehicles change?
pink increased more
purple increased more
pink decreased more
purple decreased more
How could this class improve their experimental design to better test their hypothesis?
use bigger confetti dots so the dots are easier to count.
cut confetti dots of different shapes so the dots are easier to tell apart.
buy more balloons to make sure that the materials are treated in the same way.
rub more materials against a balloon to test which material develops greater electrical charge.
Two metal spheres, each with a charge, interact through an electric field. The energy of the electric field will be changed by doing which of the following?
Rotating/spinning A along one axis and B along another
Moving both A and B the same distance and direction
Increasing or decreasing the distance between A and B
Observing A and B from a different angle
The variable that you keep the same to ensure that your experiment is valid.
independent variable
dependent variable
controlled variable
The variable that you are measuring in the experiment (this is where your quantitative data comes from).
independent variable
dependent variable
controlled variable
Data that includes numbers (measurements and amounts).
qualitative data
quantitative data
Data that does not include numbers, but describes things instead.
qualitative data
quantitative data
Which step of the scientific method is this example-
Using clear containers with measurement marks, I will compare the volume of a glass of water at room temperature with a glass of frozen water.
question
hypothesis
experiment
data
conclusion
Which step of the scientific method is this example-
If the molecular structure of solids is more dense than liquids, then water will decrease in volume when it freezes.
question
hypothesis
experiment
data
conclusion
Which step of the scientific method is this example-
Container #: State of Water: Height:
1- water =14.0 mL, ice =14.8 mL
2-water=20.0 mL, ice= 20.8 mL
3-water= 24.0 mL, ice=24.9 mL
question
hypothesis
experiment
data
conclusion
Which step of the scientific method is this example-
After consistent results, I found that water increases in volume when it freezes.
question
hypothesis
experiment
data
conclusion
