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 to scientific notation.

6.7 x 10 10

The rate at which velocity changes is called?

acceleration

How many Sig. Figs. ?

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