Free Physics Exam Questions and Answers for SS2
These Physics questions and answers were pulled from our book (Physics questions for ss2); Compiled to serve as a reference material to help teachers draw up test and exam questions faster. It could also help students assess their level of exam preparation. Each sample question includes correct answers.
Sample Physics Exam Questions and Answers
CURVED MIRRORS
DIRECTION: Choose the correct answer from the lettered options.
1. Images of real objects formed by a convex mirror are always _______.
A. inverted, real and diminished
B. inverted, virtual and diminished
C. erect, virtual and diminished
D. erect, real and magnified
2. Light rays parallel to the principal axis are reflected by the curved mirror through the _______.
A. center of curvature
B. pole
C. principal focus
D. principal axis
3. An object is placed 32cm from a concave mirror of focal length 16cm. Find the magnification of the image produced.
A. 11.06cm.
B. 10.7cm.
C. 12cm.
D. 8.09cm.
State whether the following statement is true or false.
4. A plane mirror is used as a rearview mirror.
A. True
B. False
5. A concave mirror can be used to produce a parallel beam of light if a lighted bulb is placed _________.
A. between its focus and the pole
B. at its focus
C. at its Centre of curvature
D. between its focus and Centre of curvature
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EFFECT OF ELECTRIC CURRENT
1. Which of the following is the main effect of electric currents?
A. Chemical effect
B. Heat effect
C. Magnetic effect
D. Electric effect
2. Find the power operating in a refrigerator when a current of 15A flows through the refrigerator at a resistance of 5Ω.
A. 1125AΩ.
B. 1125A/Ω.
C. 1125J.
D. 1125A.
3. An electric bulb is rated 60W for a 240V supply. Find the resistance of the bulb and the current it consumes.
A. 960 ohms and 0.25A
B. 340 ohms and 0.35A
C. 0.25 ohms and 1.50A
D. 1.50 ohms and 960A
4. Water in an electric kettle connected to a 240V supply took 6mins to reach its boiling point. How long would it have taken if the supply had been one of 210V?
A. 5.25 mins
B. 4 mins
C. 3.75 mins
D. 2.90 mins
5. A transformer which supplies 12V when connected to 240V mains takes 0.55A from the mains when used to light five 12V, 24W lamps in parallel, find its efficiency and the cost of using it for 12hr, at 60k per kWh.
A. 92.91%, 90.04k.
B. 91.91%, 95.04k.
C. 90.91%, 95.04k.
D. 90.91%, 95.10k.
