Velocity, displacement, and acceleration (or any others)
100
Express N with other units.
(kg)(m)/s^2
100
How can the units for energy be expressed differently?
kgm^2/s^2
100
In an enclosed system, what can we say about momentum?
Total momentum remains constant.
100
What is Steph's favourite colour?
(Spectral) Minty Green
200
A car travels a distance of 400m in 20s, and back in 50s. What is the difference in it's speed.
12ms^-1
200
When do you use the equation for dynamic friction?
When the object is in motion.
200
If you lift a 10kg weight 1m, how much work have you done?
100J
200
Is energy conserved in an inelastic collision?
No
200
What is a femtometre
10^-15m
300
In projectile motion, when a stone is thrown horizontally from the top of a cliff, what happens to the vertical component of velocity.
Increases continuously (at a constant rate)
300
What is the name of the book that Newton wrote his three laws in?
Principia Mathematica
300
State the law of conservation of energy?
The total energy of an isolated system cannot change, however it can change form.
300
If a tennis ball with mass 100g travelling at 5ms^1 hits a stationary 1kg calculator and stops, what speed does the calculator fly away at?
0.5ms^-1
300
How bad is the TI-inspire?
Very bad (11 on a scale of 1-10)
400
A stone is thrown horizontally at 10ms^-1 from the top of a cliff 45m high. How far from the base of the cliff will the stone land?
30m
400
What is Newton's third law equivalent for a swimmer propelling themselves through the water.
Swimmers action pushing the water backwards, water's reaction propelling the swimmer forward.
400
A runner of mass 60kg maintains a speed of 10m/s. What is the runners kinetic energy?
3000J
400
A trolley of mass 1kg moves at 4m/s and collides with a stationary trolley of mass 3kg. After the collision the 1kg trolley rebounds with a velocity of -2m/s. What is the difference in kinetic energy before and after the crash?
0J
400
What is the capital of Latvia
Riga
500
A ball, initially at rest, takes t time to fall through a vertical distance h. Express 225h in terms of t.
15t
500
Calculate the magnitude and direction of the force that must be acting on the object in order for it to be in translational equilibrium
57.82N from 60.5˚ from the horizontal in the third quadrant
500
If an object falls from h height, express its velocity just before it hits the ground?
(20h)^(1/2)
500
Express kinetic energy in terms of momentum and mass.
p^2/2m
500
If a tree falls in the middle of a forest and nothing hears it, does it make a sound?