Physics

Question 1

Which is not necessarily true about similar triangles

Answer 1

Their corresponding sides are congruent

Question 2

Which is true about similar triangles

Answer 2

Corresponding sides are proportional

Question 3

A hiker backpacks to a waterfall that is 1000 m east and 1500 m north of his starting position. What is the magnitude of his displacement

Answer 3

1800m

Question 4

What is the approximate Cartesian angle of a vector whose component vectors are +6.50m vertically and +9.60m of his displacement

Answer 4

146 degrees

Question 5

If the length of one leg of a right triangle is 4.7 and the length of the hypotenuse is 5.2, what is the length of the other leg

Answer 5

2.2

Question 6

Resolve the vector L into components Lx and Ly if the length of vector L is 16.0m and the angle it makes with the horizontal is 25 degrees

Answer 6

Lx= 14.5m, Ly= 6.76m

Question 7

If a vectors reference angle is 10 degrees and the vector angle is 190 degree, which quadrant does the vector lie in

Answer 7

III

Question 8

Which of the following is a vector

Answer 8

F

Question 9

Which of the following is always positive

Answer 9

Magnitude

Question 10

Which of the following map directions is equivalent to the Cartesian 180 degree

Answer 10

360 T

Question 11

Which is another way to write 0degree

Answer 11

090T

Question 12

A hiker backpacks to a waterfall that is 1500m east and 2000 m north of his starting position. What is the magnitude of his displacement? Use an order-of-magnitude estimation to choose the correct answer

Answer 12

2500 m

Question 13

Resolve the vector L into components Lx and Ly if the length of vector L is 15.0 m and it’s reference angle is 20 degrees

Answer 13

Lx=+14.1m, Ly= +5.13m

Question 14

Map directions are measured from ______.

Answer 14

Clockwise from North.

Question 15

Triangles containing a 90 degree angle are called

Answer 15

Right triangles

Question 16

Vectors can be multiplied by

Answer 16

Scales

Question 17

The sum of the angles is any triangle is equal to 360 degree

Answer 17

False

Question 18

What is Sin 0

Answer 18

Hypotenuse

Question 19

STUDDYYYYYYYYYYYYYY CHAPTER 4 packettttttt with the anglessss

Answer 19

!!!!!!!!!!

Question 20

Displacement is the total distance an object has traveled

Answer 20

False

Question 21

________ can be a positive or negative quantity

Answer 21

Acceleration

Question 22

There is no difference between speed and velocity

Answer 22

False

Question 23

Scalar quantities contains 2 types of information

Answer 23

False

Question 24

The Greek letter ____ means change in

Answer 24

Delta

Question 25

The study of motion is called

Answer 25

Mechanics

Question 26

Which branch of mechanics describe how objects move

Answer 26

Kinematics

Question 27

Which branch of mechanics explain the causes of motion

Answer 27

Dynamics

Question 28

What is the change in position(in a straight line. )between 2 distinct points

Answer 28

Displacement

Question 29

Which quantity provides only one piece of information only speed for example

Answer 29

Scalar

Question 30

Which is the formula for velocity

Answer 30

_. D | V= delta t

Question 31

Which is the formula for acceleration.

Answer 31

- _ | A=V

Question 32

What is the gravitational acceleration on Esther's surface

Answer 32

-9.81 m/s2

Question 33

Wha does delta t stand for

Answer 33

Change in time

Question 34

You throw a ball for your dog Procyon to fetch. Pro runs from right next to you to the hall lying 22 m away and brings it directly back to you. The round trip takes 11s you pat his head and give a Him a treat. A. What was the net change in pros psotion overall? B. What was the total distance covered by the dog? C. What was the dogs average speed

Answer 34

A.0 B. 22+22=44m C. 4 m/s

Question 35

A ball is dropped from an 80.0 m building. What is the balls velocity after 3.00s?

Answer 35

29.43m/s

Question 36

The universe consist of three principles earth wind and fire

Answer 36

False

Question 37

The____system is also called the SI

Answer 37

Metric

Question 38

The pound is the metric unit of measurement for mass

Answer 38

False

Question 39

Accuracy and Percision are the same thing

Answer 39

False

Question 40

We can calculate the error in a measurement by finding the_______

Answer 40

Percent error

Question 41

Anything that has mass and takes up space is

Answer 41

Matter

Question 42

The object that we use to find measurements called

Answer 42

Instruments

Question 43

Set a valuation of how close a measurement is to the actual value is

Answer 43

Accuracy

Question 44

How exactly in measurement can be made is called

Answer 44

Percision

Question 45

Measurements consist of officer and digits and one estimated digit called the

Answer 45

Significant digit

Question 46

What is the S I unit of measurement for time

Answer 46

Second

Question 47

What is the S I unit of measurement for mass

Answer 47

Kilogram

Question 48

When trying to solve a problem what is the first thing you do

Answer 48

Understand the problem

Question 49

What are the three principal dimensions

Answer 49

Space time and matter

Question 50

What country develop the metric system

Answer 50

France