2022 Jamb Physics Mock Questions and Answers

1. A satellite is in a parking orbit if its period is
   A. More than the period of the earth
   B. Equal to the period of the earth
   C. The square of the period of the earth
   D. Less than the period of the earth

1. What does not drop through an open umbrella of silk material unless the inside of the umbrella is touched
   A. Osmotic pressure
   B. Capillarity
   C. Surface tension
   D. Viscosity
2. A bead travelling on a straight wire is brought to rest at 0.2m by friction. If the mass of the bead is 0.01kg and the coefficient of friction between the bead and the wire is 0.1, determine the work done by the friction
   A. 2 x 10-3J
   B. 2 x 102J
   C. 2 x 10-4J
   D. 2 x 101J [g= 10ms-2]

2022 Jamb Physics Mock Questions and Answers

1. The stylus of a phonograph record exerts a force of 77. x 10-2N on a groove of radius 10-5m. Compute the pressure exerted by the stylus on the groove.
   A. 2.42 x 109 Nm-2
   B. 4.90 x 108Nm-2
   C. 2.45 x 108Nm-2
   D. 3.45 x 108Nm-2

2. A piece of stone attached to one end of a string is whirled round in a horizontal circle and the string suddenly cuts. The stone will fly off in a direction.
   A. Tangential to the circular path
   B. perpendicular to the circular path
   C. Towards the centre of the circle
   D. Parallel to the circular path.

3. A test tube of radius 1.0cm is loaded to 8.8g. If it is placed upright in the water, find the depth to which it would sink.
   A. 25.2 cm
   B. 2.8 cm
   C. 28.0 cm
   D. 5.2 cm [g = 10ms-2 density of water 1 000kgm-3].

4. A 90cm uniform lever has a load of 30N suspended at 15cm from one of its ends. If the fulcrum is at the center of gravity, the force that must be applied at its other end to keep it in horizontal equilibrium is
   A. 20 N
   B. 30 N
   C. 60 N
   D. 15 N

5. On top of a spiral spring of force constant 500 Nm-1 is placed a mass of 5 x 10-3kg. If the spring is compressed downwards by a length of 0.02m and then released, calculate the height to which the mass is projected
   A. 2 m
   B. 8 m
   C. 1 m
   D. 4 m
   2022 Jamb Physics Mock Questions and Answers

6. A hose of cross-sectional area 0.5m2 is used to discharge water from a water tank at a velocity of 60ms-1 in the 20s into a container. If the container is filled completely, the volume of the container is
   A. 600 m3
   B. 6 000 m3
   C. 240 m3
   D. 2 400 m3
7. A force of 100N is used to kick a football of mass 0.8kg. Find the velocity with which the ball moves if it takes 0.8s to be kicked.
   A. 100ms-1
   B. 32ms-1
   C. 50ms-1
   C. 64ms-1
   Force, motion, quantities, heat capacity, waves and lences, energy, power, electrolysis, bonding, waves, lens, momentum
   Questions
   Red+Green is what?
   The function of a split ring commutator in a DC circuit is what?
   Young modulus of a material is what?
   What is the dimension for (v=at) where v is velocity

A luminous object can be seen when it
A. Diffract light b. Reflect light

A wave whose vibration are only produced in one place is called?
The relationship between capacitor and dielectric material is?

A radioactive substance has a half life of three days and a mass of 15g, what was it’s mass 18days ago?

Mass of copper deposited when 0.25A of electricity is passed through it for 60mins is?

The Earth magnetic field consists of line pointing to what direction?
In an electronic device, the output voltage is through
A. Collector b. Base c. Emitter

Red + Green gives what?
Answer- yellow

The function of a split ring commutator in a D.C circuit is ?
Answer- The purpose of split ring is to reverse flow of current after every half rotation of the coil and make coil rotate in a single direction.
A resistance of 95.2 ohms is placed at the ice point of a thermometer . what corresponding ohm gives 19.4 degree celcius (incomplete question)

The formula for youngs modulus is given as?
Answer- Tensile stress/ Tensile strain

A substance has a decay constant of 3 days with 15g now . how much grams had it 18 days ago?
Answer- 960g

The effect of hydrogen bubbles in a cell can lead to ?
Answer- Reduction of emf and Polarization.