Year 10 Term 4 Flashcards
tera- (T)
10^12
giga- (G)
10^9
mega- (M)
10^6
kilo- (k)
10^3
hecto- (h)
10^2
deci- (d)
10^-1
centi- (c)
10^-2
milli- (m)
10^-3
micro (μ)
10^-6
nano (n)
10^-9
Determine how many significant figures to answer to
Answers are rounded to the least precise unit of the numbers provided
True or False: Negative acceleration is the same as deceleration
False. Negative acceleration is acceleration in the negative direction of the chosen coordinate system while deceleration is acceleration in the opposite direction of motion
(SUVAT) v =…
v = u+at
(SUVAT) v^2 =…
v^2 = u^2+2as
(SUVAT) s =…
s = t/2(u+v)
= ut+1/2at^2
= vt-1/2at^2
Explain how to find the distance/displacement from the speed/velocity-time graph
The area formed by the shape of the journey is the distance/displacement
Explain how to find the acceleration from the speed/velocity-time graph
The gradient is the acceleration
Recall the equation for change in direction
Vector b - Vector a
Identify the trig function for the horizontal component
The trig function for the horizontal component is cosine
Identify the trig function for the vertical component
The trug function for the vertical component is sine
W =…
W=mg
F =…
F=ma
On a slant, recall whether mg*sin(theta) is perpendicular or parallel to the object
mg*sin(theta) is parallel
On a slant, recall whether mg*cos(theta) is perpendicular or parallel to the object
mg*cos(theta) is perpendicular
Recall what type of wave does not require a medium
Electromagnetic waves do not require a medium
(Waves) v =…
v=fλ
Recall what type of wave had compressions and rarefactions
Longitudinal waves have compressions and rarefactions
Recall the shape of the wave created by simple harmonic motion
Simple harmonic motion forms a sinusoidal wave
For a displacement-distance graph, express the motion of the wave as an equation
y=Asin(kx)
where k is 2π/λ
For a displacement-time graph, express the motion of the wave as an equation
y=Asin(wt)
where w is 2π/T
Contrast the reflected waves from a rigid and flexible boundary
The waves reflected are opposite in polarity and free to move vertically respectively
Recall what impacts the velocity of a wave?
The velocity of a wave is impacted by the density of the medium it is traveling through
Contrast a ray and a wavefront
Recall what impacts the frequency of a wave?
No factors impact the frequency
