Unit 1:Vector

UNIT1: VECTOR
GROUP 5
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
CHOOSE THE BEST WORD OR PHRASE FOR EACH SENTENCE
The line passing through the initial point and the terminal point of a vector is called the… of the vector
Base
Two parallel vectors may have the same or opposite…
Direction
Newton’s laws employ common vector operations such as… and vector resolution
Vector addition
PRACTICE AND EXERCISES
CHOOSE THE BEST WORD OR PHRASE FOR EACH SENTENCE
The goal of a force analysis is to determined the… and the corresponding acceleration.
Net force
A vector quantity is fully described by its…and direction.
Magnitude
Several quantities that can be represented by vectors include displacement, velocity, acceleration, and…
Force
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Multiplying or dividing vectors by scalars results in
a. Vectors if multiplied or scalars if divided
b. Scalars if multiplied
c. Scalars
d. Vectors
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Multiplying or dividing vectors by scalars results in
a. Vectors if multiplied or scalars if divided
b. Scalars if multiplied
c. Scalars
d. Vectors
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
The diagram to the right shows the
direction air resistance of three
forces acting on a moving sports
car. The car is travelling at constant
speed.

PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
The diagram to the right shows the
direction air resistance of three
forces acting on a moving sports
car. The car is travelling at constant
speed.

PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Which of the following is an example of a vector quantity?
a. Temperature
b. Velocity
c. Volume
d. Mass
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Which of the following is an example of a vector quantity?
a. Temperature
b. Velocity
c. Volume
d. Mass
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
 
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
A force of magnitude F acts at an angle α to the horizontal. The magnitude of the horizontal component of the force is :
a. Fcosα
b. Fsinα
c. F sin( 90 – α)
d. 0
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
A force of magnitude F acts at an angle α to the horizontal. The magnitude of the horizontal component of the force is :
a. Fcosα
b. Fsinα
c. F sin( 90 – α)
d. 0
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Which of the following pairs are both vector quantities?
a. weight and mass
b. velocity and speed
c. force and acceleration
d. velocity and energy
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Which of the following pairs are both vector quantities?
a. weight and mass
b. velocity and speed
c. force and acceleration
d. velocity and energy
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Two forces of magnitude 20N and 50N act simultaneously on a body. Which one of the following forces cannot be a resultant of the two forces?
a. 20N
b. 30N
c. 40N
d. 70N
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Two forces of magnitude 20N and 50N act simultaneously on a body. Which one of the following forces cannot be a resultant of the two forces?
a. 20N
b. 30N
c. 40N
d. 70N
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
A girl runs once around a circular track with a radius of 65m at a speed of 2m/s. Her displacement is: 2400
a. 0
b. 65m west
c. 65m east
d. 130m
e. Other answers
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Two forces of magnitude 3N and 4N respectively act on a body.The maximum possible magnitude of the resultant of these forces is
a. 12N
b. 7N
c. 5N
d. 1N
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Two forces of magnitude 3N and 4N respectively act on a body.The maximum possible magnitude of the resultant of these forces is
a. 12N
b. 7N
c. 5N
d. 1N
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Three forces of equal magnitude F act on a body as shown as in the diagram below. The body:
a. does not accelerate
b. accelerates towards north-west
c. accelerates towards south-east
d. accelerates towards north-east
PRACTICE AND EXERCISES
CHOOSE THE CORRECT ANSWER:
Three forces of equal magnitude F act on a body as shown as in the diagram below. The body:
a. does not accelerate
b. accelerates towards north-west
c. accelerates towards south-east
d. accelerates towards north-east
PRACTICE AND EXERCISES
TRANSLATE INTO ENGLISH:
Lực được biểu diễn bằng một đại lượng véctơ có:
+ Gốc là điểm đặt của lực.
+ Phương, chiều trùng với phương chiều của lực.
+ Độ dài biểu thị cường độ của lực theo tỉ xích cho trước.
Force is represented by a vector quantity with:
+ Origin is a place of force.
+ The direction coincides with the direction of the force.
+ ????
PRACTICE AND EXERCISES
TRANSLATE INTO ENGLISH:
Định luật II Niu-tơn được phát biểu như sau : Gia tốc của một vật cùng hướng với lực tác dụng lên vật, với độ lớn tỉ lệ thuận với độ lớn của lực và tỉ lệ nghịch với khối lượng.
Newton’s Law II was stated as follows: Acceleration and force of a body are the same direction, and to be in direct ratio to magnitude of force and to be in inverse ratio to the mass.
PRACTICE AND EXERCISES
TRANSLATE INTO ENGLISH:
Lực là một đại lượng vectơ đặc trưng cho tác dụng của vật này lên vật khác mà kết quả là gây ra gia tốc cho vật hoặc làm cho vật bị biến dạng.
Force is a vector quantity which represented by acting on a body that result in acceleration or the body is deformated.
PRACTICE AND EXERCISES
TRANSLATE INTO ENGLISH:
Đại lượng vô hướng là một đại lượng không thay đổi khi xoay hoặc chuyển dịch hệ tọa độ, ví dụ như: khối lượng, áp suất, tốc độ…
Scalar quantity is a constant quantity when rotating or moving coordinate system such as mass, pressure, speed,...
PRACTICE AND EXERCISES
TRANSLATE INTO ENGLISH:
Hai vectơ đối song là hai vectơ cùng phương nhưng ngược chiều.
Anti-parallel of two vectors is defined as the same direction but opposite the dimension.
PRACTICE AND EXERCISES
 
Solution
 
Solution
 
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GROUP 5