WorksheetsU6 Warm up Quiz Number 2
Total questions: 15
Worksheet time: 8mins
A superconducting material has a critical temperature TC.
Which graph shows the variation of resistivity ρ with temperature T?
X, Y and Z are three networks of resistors.
Which gives the networks in order of largest total resistance to smallest total resistance?
X, Y, Z
Y, X, Z
Z, X, Y
Z, Y, X
A nucleus of bismuth-209 83209Bi absorbs a neutron. The newly formed nucleus subsequently decays in two stages to form a nucleus of nuclide X. One beta-minus particle and one alpha particle are emitted during these two decays.
What are the nucleon number and the proton number of X?
A
B
C
D
The concept of exchange particles was introduced to explain forces between elementary particles. This concept requires that exchange particles have
charge
momentum
phase
rest mass
A stationary wave of wavelength λ is produced on a string.
What are the phase difference and the distance between adjacent antinodes?
A
B
C
D
A central diffraction maximum is observed when monochromatic light of wavelength λ passes through a single slit of width s.
Which combination of changes to λ and s will always produce a wider central diffraction maximum?
A
B
C
D
A ball is dropped from a height h.
The ball hits the ground with a velocity v. The ball is now dropped from a height of 2h. Air resistance is negligible.
What is the velocity at which the ball hits the ground?
v
2v
v2
2v
The graph shows the variation of stress with strain for a material.
What is the Young modulus of the material?
1.2 × 105 Pa
1.5 × 105 Pa
1.2 × 1011 Pa
1.5 × 1011 Pa
Which row shows the resistance of an ideal ammeter and of an ideal voltmeter?
A
B
C
D
The current in a resistor is 15 mA.
How many electrons pass through the resistor in 3 minutes?
2.8 × 1017
1.7 × 1019
2.8 × 1020
1.7 × 1022
Three resistors are connected in series with a 9.0 V battery of negligible internal resistance.
The resistance of the variable resistor is varied from 0 to 3.0 kΩ.
The range of potential difference observed on the voltmeter is
0 to 6.0 V
3.0 V to 6.0 V
4.5 V to 6.0 V
4.5 V to 9.0 V
The current–voltage characteristic between 0 and 6.0 V is required for a filament lamp. The lamp is connected in a circuit with a battery of emf 6.0 V and negligible internal resistance.
Which circuit should be used?
The diagram shows a circuit containing three resistors X, Y and Z.
X and Y each have resistance R.
Z has resistance 2R.
What is the ratio: power in X/power in Z ?
1/4
1/2
2
4
A pellet of mass 25 g travelling horizontally at 40 m s−1 enters a fixed wooden block. The pellet stops after travelling a horizontal distance of 2.5 cm in the block.
What is the average resistive force acting on the pellet?
20 N
800 N
1600 N
8000 N
The graph shows the variation of force with distance between a proton and a neutron.
The shaded area of the graph represents
acceleration.
impulse.
rate of change of kinetic energy.
work done.
