First test

Question 1

What are teh 2 types of measured quantities.

Answer 1

Scalar:
Consist of 2 things; Magnitude(Measured value ), and a unit

Vector:
Consist of 2 things; Magnitude(Measured value ), a unit, and a direction

Question 2

What will be changed with Scalar*Vector

Answer 2

The length of the vector will change not the direction.

Question 3

Define d, Δd, Δdt, t/Δt, a, v, s
and say if they are scalar or vector

Answer 3

d is the position. Vector
Δd is the displacement. Vector
Δdt is the total displacement. Vector
t/Δt is the time. Scalar
a is the acelleration. Vector
v is the velocity. Vector
s is the speed. Scalar

Question 4

Displacement

Answer 4

The diffrence between 2 positions.

Question 5

Total displacement formula

Answer 5

Δdt = Δd1 + Δd2 …
or d3(final) - d1(first)

Question 6

What is uniform motion

Answer 6

The objects displacement varing at a constant rate

Question 7

formula for velocity

Answer 7

ΔD/Δt

Question 8

Formula for average velocity

Answer 8

Δdt/Δt

Question 9

formula for speed

Answer 9

distance travelled/time

Question 10

What is non-uniform motion

Answer 10

Displacement not varing non-lineraly.
Graphically it is a quadratic

Question 11

What is a tangent

Answer 11

A tangent is the apporximate for a slope of a curved line.

Question 12

formula of acceleration

Answer 12

v2-v1/Δt

Question 13

distance vs displacement

Answer 13

displacement is a vector (gps)
does not count the middle steps

distance is scalar (step counter)
and counts the middle steps