Vocab
What are constants?
The things that stay the same in an investigation.
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What are these arrows showing?
Constant motion, stable, balanced.
When the net force is zero. Is it unbalanced or balanced?
Balanced.
Does the sentence below mean the independent variable, dependent variable, or the constants?
The thing you test or change.
It is the independent variable.
Find the average of the data: 1,4,6,5,
16/4= 4
How do we show force in a diagram?
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Are these forces balanced or unbalanced? And why?
Unbalanced, because the left arrow has a greater force than the right arrow.
How do you know when something is unbalanced (Net force)?
When the net force does not add up to zero.
Does the sentence below mean the independent variable, dependent variable, or the constants?
The outcome/result/measured result of the investigation.
It is the dependent variable.
Find the speed of an object traveling 15 meters in 5 seconds
3 m/s
What is force?
A push or pull
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40n 35n
Are the forces balanced or unbalanced. If unbalanced what direction is the greater force going to?
Unbalanced, and the greater force is going to the right.
40 is greater than 35.
Two people who are 40 newtons each are pushing a box that's 70 newtons.
Will they be able to push the box? Is this a unbalanced or balanced force?
This is a unbalanced force, and yes the two people will be able to push the box.
40+40=80
80>70
I water my plants. They grow. I use the right amount of water everyday to water it. I give it the same amount of sunlight each day. Same soil.
What is the independent and dependent variable?
What are the constants?
Independent- Watering plants
Dependent- Plants grow
Constants- Right amount of water, sunlight, soil
In an experiment, time traveled by a car was calculated 3 times in a 6 meter distance. Find the average time from the data: 2.5 s, 4 s, 2.5 s
Now using your avg. time, calculate the speed.
Avg. Time: 3 s
Avg. Speed: 2 m/s
What is acceleration?
Change in motion (speed & direction).
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20n 10n
Are the forces here unbalanced or balanced? If unbalanced what direction is the greater force going to?
Unbalanced, the greater force is going to the right.
Two cars collide with one another.
One weighs 40 newtons, the other weighs 100 newtons. What car is going to have more damage?
The one that weighs 40 newtons.
The one with less newtons always gets more damage.
I brush my teeth everyday. Because of this I don't have any cavities. I make sure to put a right amount of toothpaste on my toothbrush, same toothpaste I brush my teeth for a specific amount of time, and I brush carefully and slowly.
What is the independent and dependent variable?
What are the Constants?
Independent- Brush teeth
Dependent- No cavities
Constants- Toothpaste, right amount of toothpaste, specific time brush, brush slowly and carefully
In an experiment, time traveled by a car was calculated 4 times in a 12 meter distance. Find the average time from the data: 3.5 s, 3 s, 3.5 s, 2 s
Now using your avg. time, calculate the avg. speed.
Avg. Time: 3 s
Avg. Speed: 4 m/s
What does stable or balanced forces mean?
When the sum of the forces on an individual object add up to zero.
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15n 20n
Are these forces balanced or unbalanced?
If unbalanced what direction is the greater force going to?
Bonus question: What is the Net force?
The force is unbalanced.
The greater force is going to the left.
The net force is 35.
If two objects of equal force collide what will happen?
An equal reaction happens for both objects.
How many independent, dependent variables should there be in an investigation?
How many constants (control variable) should there be?
There should be 1 independent variable.
1 dependent variable.
Constants- There is not a specific amount of constants you need in an investigation. There are multiple constants for different investigations.
If I roll a ball that has a mass of 35 g and then roll a ball that has a mass of 27 g, which ball will move faster?
the ball with a mass of 27g