Quarter 1 Test Review. If you are calculating the change in velocity during a certain time period,...
-
Upload
annabel-preston -
Category
Documents
-
view
216 -
download
0
Transcript of Quarter 1 Test Review. If you are calculating the change in velocity during a certain time period,...
Quarter 1 Test Review
• If you are calculating the change in velocity during a certain time period, you are calculating?
acceleration
• ____________is when an object’s distance from another object is changing.
motion
Which is not a vector?
• 1. acceleration• 2. speed• 3. velocity• 4. time• 5. distance• 6. displacement
• Speed• Time• Distance
• ______________is a place or object used to tell if another object is moving.
Frame of reference
• Give 3 units for distance.
• Meters, centimeters, decameters
• What is the SI unit for liquid volume?
liters
• The SI, International system of Measurement is a system of measurement used everywhere except?
• Everywhere except U.S.
• What two measurements are needed to find speed?
• Distance and time
What is the formula for speed?
Speed = distance/time
• A speed that is used by police officers to detect how fast you are moving is called_______ __________.
Constant speed
_____is a speed that is the total distance divided by total time.
Average speed
• If the speed of an object does not change you are traveling at a __________ ___________.
Constant speed
• Daniel and Paiten are riding their mopeds together. They are traveling 10 miles to go see his Grandmother. It takes them 2 hours to get there. How fast are they going?
5 mi/hr
• Dalton is a marathon runner. If he moves at a constant speed in the same direction for 1 hour, which of the following is true?
• A. He changed speed during the hour.• B. His velocity did not change.• C. He accelerated during the hour.• D. He is in good shape.
B. His velocity did not change.
• If you know Josh jogged 20 kilometers in 6 hours on a highway headed west, you can calculate his_______________.
Average velocity
Which two variables do you need to place on a graph to show motion of a car?
• Time and distance
You would place the _________variable on the X axis of a line graph.
Manipulated or independent
• In graphing motion, what do you know about the runner with the steepest slope?
• He is the fastest.
• On a graph showing distance verses time, a horizontal line tells you what?
• The object is sitting still.
• Convert 3 kilometers to hectameters.
30
Convert 140 grams to ounces.
5 ounces
Convert 224 grams to ounces.
8 ounces
Jamin has a cat that weighs 15 kg. How many pounds does he weigh?
33 lbs
What is a conversion factor?
• A fraction that is equal to the number one that is used to convert from one unit to another.
Change 67 000 000 000 to scientific notation.
6.7 x 1010
• The rate at which velocity changes is called?
acceleration
How many Sig. Figs. ?
• 0.00003450
4
How many Sig. Figs.?
• 7000
1
How many Sig. Figs.?
8990.
4
• Give an example of deceleration.
Slowing down
• Why is the Earth always accelerating?
• Because it is always traveling in a path in which it changes direction.
• Jamie walks north 3 blocks, then turns west and walks 3 blocks. Then she turns south and walks 3 blocks. 1. What would be her displacement?
• 2. What distance did she walk?• Be specific.
• Displacement is 3 blocks west.• Distance is 9 blocks.
• On an acceleration graph showing speed vs. time, a straight horizontal line would tell you what?
constant