Classwork: non- uniform motion
Classwork: non- uniform motion
1.
The velocity as a function of time for
object moving in a straight line is given by the
equation v(t) = 2t2 + 3. What is the displacement
of the object between t = 0 and t = 5 seconds?
A. 98.3 m, B) 25.0 m, C) 83.3 m D) 265 m
1. The velocity as a function of time for object
moving in a straight line is given by the equation v(t)
= 2t2 + 3. What is the displacement of the object
between t = 0 and t = 5 seconds?
A) 98.3 m, B) 25.0 m, C) 83.3 m D) 265 m
2.
The velocity as a function of time for a
Formula 1 racing car on a straight race track is
given as v = At2 + Bt with constants A = 4.0
m/s3 and B = 2.0 m/s2. If the car starts at the
origin, what is its position at t = 6.0 s?
A.
324 m, B)156 m C)50.0 m D)936 m
2.
The velocity as a function of time for a
Formula 1 racing car on a straight race track is
given as v = At2 + Bt with constants A = 4.0
m/s3 and B = 2.0 m/s2. If the car starts at the
origin, what is its position at t = 6.0 s?
B.
324 m, B)156 m C)50.0 m D)936 m
3.
The velocity as a function of time for an
object moving along a straight line is given by the
equation v(t) = αt2+ βt + γ. Which of the following
expressions represents the acceleration a(t) of the
object as a function of time?
3.
The velocity as a function of time for an
object moving along a straight line is given by the
equation v(t) = αt2+ βt + γ. Which of the following
expressions represents the acceleration a(t) of the
object as a function of time?
A)𝟐𝜶 B) 𝟐𝜶𝒕 + 𝜷 C)
𝜶𝒕𝟑
𝟑
+
𝜷𝒕𝟐
𝟐
+ 𝜸𝒕 D) 𝟑𝜶𝒕𝟑 + 𝟐𝜷𝒕𝟐 + 𝜸𝒕
A)𝟐𝜶 B) 𝟐𝜶𝒕 + 𝜷 C)
𝜶𝒕𝟑
𝟑
+
𝜷𝒕𝟐
𝟐
+ 𝜸𝒕 D) 𝟑𝜶𝒕𝟑 + 𝟐𝜷𝒕𝟐 + 𝜸𝒕
4.
The position of a particle moving along the
x-axis is given by x = 22 + 28t - 4.0t2 , where t
is in seconds and x is in meters. What is the average
velocity during the time interval from t = 1.0 s to
t = 3.0 s?
1. 12 m/s, B) 24 m/s, C)46 m/s D)8.0 m/s
4.
The position of a particle moving along the
x-axis is given by x = 22 + 28t - 4.0t2 , where t
is in seconds and x is in meters. What is the average
velocity during the time interval from t = 1.0 s to
t = 3.0 s?
2. 12 m/s, B) 24 m/s, C)46 m/s D)8.0 m/s
5. Each of three particles move along an x
axis. Their coordinates (in meters) as functions of
time (in seconds) are given by the following
equations
A: x(t) = 3.5 − 2.7t 3
B: x(t) = 3.5 +2.7t 3
C: x(t) = 3.5 − 3.4t − 2.7t 2
Which
of
these
particles
have constant
acceleration?.
5. Each of three particles move along an x
axis. Their coordinates (in meters) as functions of
time (in seconds) are given by the following
equations
A: x(t) = 3.5 − 2.7t 3
B: x(t) = 3.5 +2.7t 3
C: x(t) = 3.5 − 3.4t − 2.7t 2
Which
of
these
particles
have constant
acceleration?.
6.
The acceleration as a function of time for
an object moving along a straight line is given by
the equation a(t) = 30t - 6. If the initial velocity
of the object is zero, which of the following
expressions represents the velocity v(t) of the
object as a function of time?
1. 15t2 - 6t, B) 15t2 – 6, C) 30t2 - 6t, D)30t2 3t
6.
The acceleration as a function of time for
an object moving along a straight line is given by
the equation a(t) = 30t - 6. If the initial velocity
of the object is zero, which of the following
expressions represents the velocity v(t) of the
object as a function of time?
2. 15t2 - 6t, B) 15t2 – 6, C) 30t2 - 6t, D)30t2 3t
Formative Assessment 1
Name of the student:Subject: physics
marks: 10
Topics: 1.1- 1.5
1. The distance from the center of the Moon to the center of the Earth ranges from
approximately 356,000 km to 407,000 km. What is the minimum distance to the
Moon in meters?
B. 3.56 × 103 𝑚
A. 3.56 × 105 𝑚
C. 3.56 × 108 𝑚
D. 3.56 × 106 𝑚
2. How many significant figures does the 2.1 - 1.10042 have?
A. 4
B. 2
C. 3
D. 1
3. Three quantities, the results of measurements, are to be added. They are 3.0600,
4.163, and 1.1. What is their sum to the correct number of significant figures?
A. 8.32
B. 8.3
C. 8.323
D. 8 .4
4. Given the equation w=xyz, and x= 1.1 × 103 , 𝑦 = 2.48 × 10−2 , 𝑎𝑛𝑑 𝑧 = 6.000,
what is w, in scientific notation and with the correct number of significant figures?
A. 6.02 × 102
B. 8.4 × 103
C. 1.6 × 102
D. 9.3 × 103
5. What is the SI unit of electric current?.
A. 𝑉𝑜𝑙𝑡
B. 𝐶𝑎𝑛𝑑𝑒𝑙𝑎
C. 𝐴𝑚𝑝𝑒𝑟𝑒
D. 𝑃𝑎𝑠𝑐𝑎𝑙