If an object stars at a position of x = 5 m, and moves to a position of x = -3 m
ID: 1273650 • Letter: I
Question
If an object stars at a position of x = 5 m, and moves to a position of x = -3 m, what is its displacement?
5 m
-3 m
3 m
-8 m
E, 8 m
If I am using a meterstick to measure the length of a table, which reported measurement below would be the most unrealistic?
2 m
2.3 m
2.35 m
2.357 m
2.3574 m
If you are going to calculate the velocity of an object, what two quantities do you need to measure?
Position and displacement
Length and position
Length and time
Time and displacement
E. Y and X
Displacement is a vector, so the sign (positive or negative) determines whether the dispalcement of the object is in one direction or another.
True
False
A negative time measurement (such as t = -3 sec) makes no sense in Physics.
True
False
A.5 m
B.-3 m
C.3 m
D.-8 m
E, 8 m
If I am using a meterstick to measure the length of a table, which reported measurement below would be the most unrealistic?
A.2 m
B.2.3 m
C.2.35 m
D.2.357 m
E.2.3574 m
If you are going to calculate the velocity of an object, what two quantities do you need to measure?
A.Position and displacement
B.Length and position
C.Length and time
D.Time and displacement
E. Y and X
Displacement is a vector, so the sign (positive or negative) determines whether the dispalcement of the object is in one direction or another.
True
False
A negative time measurement (such as t = -3 sec) makes no sense in Physics.
True
False
Explanation / Answer
1) If an object stars at a position of x = 5 m, and moves to a position of x = -3 m, what is its displacement?
Displacement = x2 - x1 = -3 -(5) = -8m
2) If I am using a meterstick to measure the length of a table, which reported measurement below would be the most unrealistic?
Since we are using a meter scale so the best suited calculation will be n*1m, hence the best answer is 2m which is option A in the list
3) If you are going to calculate the velocity of an object, what two quantities do you need to measure?
Velocity = Displacement/Time
Hence correct answer is option D
4) Displacement is a vector, so the sign (positive or negative) determines whether the dispalcement of the object is in one direction or another.
True
5) A negative time measurement (such as t = -3 sec) makes no sense in Physics.
True