-
State the unit for the quantity: mass
kilogram (kg)
-
State the unit for the quantity: length
metre (m)
-
State the unit for the quantity: time
second (s)
-
State the unit for the quantity: temperature
kelvin (K)
-
State the unit for the quantity: electrical current
ampere (A)
-
State the unit for the quantity: amount of substance
mole (mol)
-
State the multiple (power of 10) for the prefix: tera-
1012
-
State the multiple (power of 10) for the prefix: tera-
109
-
State the multiple (power of 10) for the prefix: mega-
106
-
State the multiple (power of 10) for the prefix: kilo-
103
-
State the multiple (power of 10) for the prefix: centi-
10-2
-
State the multiple (power of 10) for the prefix: milli-
10-3
-
State the multiple (power of 10) for the prefix: micro-
10-6
-
State the multiple (power of 10) for the prefix: nano-
10-9
-
State the multiple (power of 10) for the prefix: pico-
10-12
-
State the multiple (power of 10) for the prefix: femto-
10-15
-
State the multiple (power of 10) for the prefix: atto
10-18
-
SCALAR quantity
has magnitude ONLY and is completely described by a number and appropriate units.
-
VECTOR quantity
has both magnitude (size) and direction stated to be completely described
-
List 6 vector quantities
- Velocity
- Displacement
- Acceleration
- Force
- Weight
- Momentum
-
List 8 scalar quantities
- speed
- distance
- mass
- time
- density
- energy
- power
- temperature
-
In scale drawing, arrows should be drawn ............. to ..............
head to tail
-
What is the alternative to scalar drawing?
Pythagoras or trigonometry
-
When asked for the resultant, which two pieces of information should you give in your answer
The force/magnitude (length of the line) and direction (the angle)
-
A vector is resolved by which metod (finding x and y values)
Trigonometry - Cos and Sin mainly
-
An object is in equilibrium if
The forces acting in all directions are equal and so the resultant is 0
-
Displacement is
the straight line distance from any given point in a stated direction
-
Instantaneous speed is
the speed at a given instant of time
-
Average speed=
Average speed = Distance / Time
-
Velocity=
Velocity = Displacement / Time
-
Acceleration=
Acceleration = Change in Velocity / Time
-
On a velocity-time graph a horizontal line represents
Constant velocity, no acceleration
-
On a velocity-time graph a straight line slope shows
constant acceleration
-
On a displacement-time graph a horizontal line represents
Stationary object, no velocity
-
A displacement-time graph with a straight line slope shows
positive/negative constant velocity
-
How can you find displacement from a velocity-time graph?
Area under the curve
-
In SUVAT equations, what does s stand for?
Displacement
-
In SUVAT equations, what does u stand for?
Initial velocity
-
In SUVAT equations, what does v stand for?
Final velocity
-
In SUVAT equations, what does a stand for?
Acceleration
-
In SUVAT equations, what does t stand for?
Time
-
List the four SUVAT equations
- s = ut + 1/2at2
- v = u + at
- s = 1/2(u + v)t
- v2 = u2 + 2as
-
Gravity is s_ _ _ _ _ _ _ _ _ _
symmetrical
-
Acceleration due to gravity is
9.81ms-2
|
|