Qualification > Sciences

AS PHYSICS UNIT 1

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studz:
hey being a little off topic, c1 and c2 exams both are on the same date and time!
i will be giving them both this january..how will i be doing both papers at the same time?  :-\

elemis:

--- Quote from: studz on December 14, 2010, 03:32:28 pm ---hey being a little off topic, c1 and c2 exams both are on the same date and time!
i will be giving them both this january..how will i be doing both papers at the same time?  :-\

--- End quote ---

You'll have a break in between the two.

Vampire-Love4ever:
Hey,
I have some doubts. Please help me out here

Q1- Explain the experimental procedure to find centre of gravity of an irregular object.

Q2- If in a collision, the loss of kinetic energy is 0.08J.
Will it be elastic or inelastic collision?

Q3- How to use strobe photography or video camera to analyse motion?

Q4- What are coplanar vectors?

Q5- Application of mechanics for safety or to sports.

Q6- Explain the term of tensile/ compressive stress and breaking stress.

Vampire-Love4ever:
Some more doubts :$

Q7- A school treasure hunt uses the following set of directions:
     A, 80m at 45 degree
    B, 40m at 150 degree
    C, 50m at 180 degree
    D, 60m at 270 degree.
a) Team 1 follows the direction correctly. Draw a vector diagram to find their final displacement.
b) Team 2 gets the directions mixed up and follows them in the order C-B-D-A. What effect will this have on their final position compared to team 1?

Q8- A block is sliding down a plank at a constant speed. The weight of the block is 5N and the plank is 35 degree to the horizontal. Sketch a diagram for the three forces and use it to calculate the friction.

Q9- A ball is kicked off a flat with a horizontal velocity of 12ms^-1. How would you :
a) Calculate the horizontal distance travelled after it has fallen 15m?
b) Calculate the resultant velocity after 1.9s?

Q10- During a school play, a dagger is kicked and slides off the stage with a horizontal velocity of 1.5ms^-1. It lands on the floor a horizontal distance of 80cm away. Calculate the height of the stage.

Q11- What is the volume of a cylinder, of length 26cm and diameter 56mm.

Q12- Calculate the force applied to a surface of 220mm^2 to create a pressure of 10MPa.
Give your answer in kN.

Q13- Estimate average acceleration of a car travelling at 6mph in 8.0s.

Q14- A boat of mass 800kg is pulled along the sand at constant velocity by a cable attached to a winch. The cable is 15 degree to the horizontal.
Draw a free body force diagram for the boat. Label the forces: Tension, Friction, Normal reaction and weight.

Q15- If volume of water displaced for a person having weight 600N is 0.05m^3 in the Dead sea. How is this compared with the volume that needs to be displaced for the person  to float in a swimming pool?

Q16- A spring of length 10cm extends to 12.5cm when a 8.0N weight is suspended from it. Calculate the spring constant of the spring.

Vampire-Love4ever:
Q17- Draw a free body force diagram for a vertically ascending balloon. Label Upthrust, Drag and Weight.

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