Question 1 to 9
1. Time can be considered of all of the followings except?
Event from past, present and future b. What clocks measure c. What keeps everything happening at ones d. It is a
derived physical quantity 2. Which of the followings best described "Frame of reference" in Newtonian mechanics?
Standard which velocities and acceleration are measured b. Speed of an object measured by space c. Velocity of a car is measured with velocity d. Acceleration is speed
3. Use the equation below to find the respective values of a, b and c,
FI=Km^{a}v^{b}r^{c}
a. 1, 2, -
12, 1, -1 c. -1, 1, 2 d. 1, -1, 2
4. A constant force 2l+3l+4k (N) produces displacement of 2l+3l+4k (m).Determine the work done?
a. 92 J b. 28J c. 25J29J
5. If the magnitude of two vectors is 2 and 3, and the magnitude of their scalar product is \sqrt[1]{2}, find the angle between them.
\mathfrak{a.40^{*}\cong45^{*}c.50^{*}d.45
6. A steel rod 4m long and 0.5cm^{2} in cross sectional area is found to stretched 0.2cm. Calculate the strain of the material.
135.0\times10^{-4}b,5.0\times10^{-4}m~c.5.0\times10^{-4}cm~d,5.0\times10^{-4}N
7. In what temperature does water has the density of 1000kg/m^{3}? 64^{\circ}C~b . 3^{\circ}C c. 2°C d
. 1^{\circ}C
8. A hydraulic lift is used to lift a car that weighs 3700N. The car is pushing down on a 2.8m^{2} platform. Calculate the force that must be exerted on a 0.072m^{2}pistoni order to lift the car.
a. 90N b. 92N c. 94N95N
9. The force acting along the surface of the liquid causing the surface to behave like a stretched elastic skin is known
as
buoyant force b. cohesion c. adhesion d. surface tension
1. c. What keeps everything happening at ones
2. a. Standard which velocities and acceleration are measured
3. d. 1, -1, 2
4. a. 92 J
5. c. 50°
6. b. 5.0 × 10^-4 m
7. b. 3°C
8. c. 94N
9. d. surface tension