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WorksheetsFinal Physics 2
Total questions: 20
Worksheet time: 39mins
A ball is thrown vertically upwards. The upward direction is considered the positive direction. Assuming that air resistance is negligible, identify correct statement.
When the ball is at the highest point,its acceleration is zero
Its velocity is negative during the upward and downward motion.
Its acceleration is negative during the upward and downward motion of the ball.
Its displacement from the point of projection is negative during the upward and downward motion.
An athlete doing the long jump takes off at a speed of 12.0 ms-1 at an angle of 30o to the horizontal. How far would be able to jump.
6.36 m
12.7 m
29.5 m
58.9 m
Identify Newton's First Law
F=ma
Every action has an equal and opposite reaction
An object at rest stays at rest, an object in motion stays in motion.
Friction
You are carrying a lunch tray when you bump into the edge of a table. Although the tray did not tip, your milk falls off of the front of the tray.
Newton's
1st
Law of Motion
Newton's
2nd
Law of Motion
Newton's
3rd
Law of Motion
Newton's third law of motion is about ation and reaction. Which statement is not correct about the action and the reaction.
They are in opposite directions
They act on the same body
They are the same type of force
They have the same magnitude
A passenger of mass 55kg is in a car which is moving with a velocity of 20ms-1. If the driver suddenly brakes the car, the passenger who is wearing a seat belt is pushed forward at the distance of 0.4 m.Find the average pulling force of the seat belt and the time interval of the force acting on the passenger. ( neglect the effect of friction between the passenger and the seat of the car).
Average force = 1.1 x 104 N, Time Interval = 0.03 s
Average force = 2.2 x 104 N, Time Interval = 0.05 s
Average force = 2.8 x 104 N, Time Interval = 0.04 s
Average force = 5.6 x 104 N, Time Interval = 0.02 s
Two wooden clock Q and R of masses 2.0kg and 1.5kg respectively are on a smooth table as shown in the figure. A force of 7.0N acts on the block Q so that both the block accelerate together.
Find the horizontal force that Q exerts on R.
1.0 N
3.0 N
4.0 N
7.0 N
Identify the energy change that occurs when a ball rolls down an inclined plane without slipping.
Potential Energy ---> Translational kinetic Energy
Potential Energy ---> Rotational kinetic Energy
Potential Energy ---> Translational kinetic Energy + Rotational kinetic Energy
Potential Energy ---> Translational kinetic Energy + Work done against friction
The S.I unit of the Stefan- Boltzmann constant is
kgms-2K-4
kg m-1s3 K2
kg-1s2K-2
kg s-3 K-4
A refrigerator door is 120.0 cm high, 75.0 cm wide and 5.5 thick. The temperature of the inner and outer surface of the door are 0oC and 32oC respectively. Find the heat flow through the door in one minute.
(Thermal conductivity of the door is 0.21 W m-1 K-1)
4.80 x 103 J
5.00 x 103 J
5.81 x 103 J
6.60 x 103 J
The diagram shows some rice being boiled in a pan. Find the main methods by which thermal energy is transferred (i) through the metal pan and
(ii) through the water.
(i) conduction (ii) conduction
(i) convection (ii) convection
(i) conduction (ii) convection
(i) convection (ii) conduction
Monochromatic light of wavelength 630 nm is at normal incidence on a two-slit system with separation 0.35 mm. Find the angle between the second order.
9.0 x 10-3 rad
1.8 x 10-3 rad
3.6 x 10-3 rad
7.2 x 10-3 rad
The figure represents the apparatus used to produce interference fringes in a Young's two slit experiment.
The fringe separation on the screen will increase if
The light source is moved closer to the single-slit
The width of the single-slit is increased
The distance between the two slits is increased
A source of the light of lower frequency is used
Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm3. Find the density of the rock.
7 mL
7 g/cm3
28 g/cm3
1/7 g/cm3
Identify pressure.
Somebody convincing you to jump into a pool.
How deep a well is.
Amount of force applied to a given area.
Amount of water in a cup of water.
If a hydraulic system has 1000 N applied to the input piston and has an area of 81 cm2, Find the pressure.
12.35 Pa
12,346 Pa
1235 Pa
123,457 Pa
The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray.
Find the refractive index of material if angle of incidence is 45° and angle of refraction is 30°.
1.5
1.0003
2.42
1.41
Which of the following statement is correct.
Light moves from water to air
Total internal reflection takes place when incident angle is greater than critical angle
At critical angle,refracted angle will be 90°
All the above
light waves can be polarized as they are:
transverse
of high frequency
longitudinal
reflected
