P8 Forces in Balance
P9 Motion
P10 Force and Motion
P11 Force and Pressure
P12 Wave Properties
P13 Electromagnetic Spectrum
100
What is the word to describe the net force (sum of forces) acting on an object, after the different directions of all the forces have been taken into account?
Resultant force
100
How would you find the total distance travelled using a velocity-time graph?
Find area under the graph
100
What is the 2 word phrase to describe the measure of how difficult it is to change an object's velocity?
Inertial mass
100
What is the name given to the force that helps you float?
Upthrust
100
Which type of wave has oscillations parallel to the direction of motion?
Longitudinal
100
Give 1 thing that all EM waves have in common
Travel at speed of light, can travel through a vacuum, are transverse
200
Name 2 contact forces and 2 non-contact forces
200
Describe this object's motion:
Constant velocity
200
Write the letters of the 2 areas on this graph where the object has reached terminal velocity
c and e
200
Give the 2 SI (standard) units for density
g/cm3 or kg/m3
200
As a water wave moves from deep water to shallow water, its wave speed will ____________________
Decrease
200
Give the 3 ionising waves of the EM spectrm
UV, X-rays, gamma rays
300
What does Newton's 1st Law state?
An object will not change its motion unless a resultant force acts
300
An object travelling with initial velocity 3 m/s accelerates to a final velocity of 6 m/s. If it has an acceleration of 1 m/s2, what distance does it travel?
13.5 m
300
What does Hooke's Law state?
Force on a spring and its extension directly proportional to each other
300
Pressure comes from the _________ of particles on a surface and acts in all ____________
Collisions, directions
300
Give the 3 types of seismic waves (you can use their abbreviations)
P-waves, S-waves, L-waves
300
Where do gamma rays originate from?
Radioactive nucleus of an atom
400
What is the unknown weight?
1.5 N
400
Write the steps for how you would calculate the speed at a specific time of this graph (2 steps):
1) Draw a tangent line
2) Calculate the gradient of that tangent line
400
How does a crumple zone lead to safety?
Increase impact time
400
A caterpillar vehicle is fitted with tracks that have an area of 3.0 m2 in contact with the ground exerts 4 kPa of pressure. Calculate its weight.
12000 N
400
Which type of wave cannot travel through the liquid outer core and thus leads to a shadow zone?
S-waves
400
Give the waves of the EM spectrum in order from longest wavelength to shortest wavelength
Radio waves
Microwaves
Infrared Radiation
Visible light
UV
Xrays
Gamma Rays
500
693 N
500
What is the average running speed?
3 m/s
500
A 0.5 kg trolley A is pushed at a velocity of 1.2 m/s into a stationary trolley B of mass 1.5 kg. The two trolleys stick together after the impact. Calculate the velocity of the two trolleys straight after impact
3 m/s
500
A sink plug is used to block the outlet of a sink filled with water. If the pressure of the water was 882 Pa, and the density of the water is 1000 kg/m3, what was the depth? g = 9.8 N/kg
0.09 m
500
When a light wave enters a diamond, it has a wave speed of 1.25 x 108 m/s. If this wave of light has a frequency of 4.3 x 1014 Hz, what is the wavelength of the light?
2.91 x 10-7 m
500
Please write the components involved in the usage of carrier waves to send messages:
1) _________ + Microphone
2) _________
3) _________
4) _________
1) Oscillator + Microphone
2) Transmitter
3) Receiver
4) Speaker