Keep it Movin'!
what type of force pulls an object downwards with no discrimination whatsoever?
Gravity
For 50: What is the constant value for acceleration due to gravity?
Isaac Newton, FRS is an English scientist with a knowledge in many things across multiple subject areas. What do you call individuals like him?
polymath
For 50: what does FRS stand for?
The quantity described as the 1 Newton force that pushes an object to move 1 meter. What is its formula?
work; W = Fd
For 50: what is the work formula if the object is pushed on a plane inclined at an angle?
differentiate spring constant (k) and spring force (Fs)
spring constant relies on the object
spring force relies on the person applying it
a disturbance in a given space that moves from one place to another, behaving in different natures depending on the way it travels and propagates
Wave
For 50: what are the two parts of a flowing wave?
a type of force that an object exerts in order to allow it to stand still atop a surface
Normal Force
For 50: what is the formula for normal force on a surface inclined at an angle?
name the Three Laws of Motion in order
Inertia, Acceleration, Interaction
For 50: state the law of interaction
does an asphalt road do work on a car driving forward? why?
yes, because the frictional force constantly pushes the car backwards
For 50: how about the other way around?
the one-Newton force that displaces an object for one meter within one second
Power
For 50: what is its formula?
between the two natures of waves, which one is the closest to sound waves?
Longitudinal Waves
For 50: what are the two parts of a longitudinal wave?
neglecting any other individual influence, an object at rest would have no amount of this type of force
Friction
create and acceleration equation without using the letter 'a'
hint: recall your grade 7
F/m = Δv/t
when work is done by an individual, they often lose energy;
however, that energy doesn't just dissipate into the air, as stated by which law?
Law of Conservation of Energy
For 50: state the Law of Conservation of Energy
let g = 10 m/s/s
How much potential energy is contained by a 6.50 kg object placed at a 4 meter-tall shelf?
260 J
define amplitude and wavelength
wavelength is the distance between two wave peaks while amplitude is basically a wave's height (the distance of a peak from the equilibrium line)
For 50: what is the formula for wavelength given frequency?
Two carpenters are pushing a cabinet to the right. Worker A pushes at 85N; while Worker B pushes it at 92N. The floor is carpeted with a friction force of 170N. What would the net force produced be?
7N to the right
if F = 200 N and a = 25 m/s/s
what is the acceleration if F becomes 2,400 N?
300 m/s/s
For 50: what happens to this acceleration if the mass grows thrice?
A 25 kg object experiences a push which causes it to accelerate at 3 m/s/s, moving it by 9 m. How much work is done by the force?
675 J
How far will a spring with energy 16,000 J stretch if its elasticity is rated at 80 N/m?
20 meters
Newman is going to sing bass for his choir acapella performance for their school talent show. If he hopes to let the entire gymnasium hear his bass vocals, what kind of sound should he produce? Describe the amplitude and frequency of the sound waves produced.
Nana is trying to push a crate to the right with a force of 72N; while Vince pushes it towards the other side with a 156N of force. If there is a friction force of 16 N present, what would the net force produced be?
68 N to the left
A 50 kg ball moving at 25 m/s is pushed to accelerate 960 m after 20 seconds. How much force was applied in the push?
57.50 N
A crate is moved across a floor by a cable inclined 45 degrees above horizontal. The tension in the rope is 85N. How much work is done in moving the crate four meters?
240.42 J
How far did Rae, who had 900 W of power, push a 24kg wheel tire if it accelerated at 50 m/s/s after 20 seconds?
15 meters
What is the length and frequency of a wave moving at 150 m/s, if it took around four seconds to pass through?
length: 600 meters
frequency: 0.25 Hz