Cameroon GCE ordinary level June 2025 physics 1
Cameroon GCE ordinary level June 2025 physics 1
SECTION l
(Forty two questions)
Questions 1– 42
Directions:
Each of the questions or incomplete statements in this
section is followed by four suggested answers. Select
the best answer in each case.
7. Which of the graphs in Figure 1 shows how the
temperature (0) of a pure melting substance
varies with the quantity of heat energy (Q)
absorbed by the substance?
1. Which of the following quantities is constant for
a body falling freely near the earth’s surface?
A. Air resistance
B. Acceleration
C. Kinetic energy
D. Linear momentum
| 04 | 0– | 0“ | 0“ | ||||
| *Q | Q | Q | Q | A | B | C | D |
Figure 1
2. Anything that can do work is said to possess:
A energy
B force
C efficiency
D power
8. Alternating current which has not been rectified
is not suitable for:
A charging a car battery
B making an electromagnet
C lighting a filament bulb
3. Which of the following electromagnetic waves D operating a grinding machine
can be used to detect fake bank notes?
A Gama rays
B Infra–red rays
C Ultra–violet rays
D X–rays
9. Images formed by concave lenses are always:
A virtual
B inverted
C magnified
D real
4. The quality of a sound wave is determined by the:
A wavelength
B amplitude
C frequency
D overtones
10. Which of the following quantities has the unit
kg ms“1?
A Density
B Force
C Moment
5. The focal length of a convex lens is 10 cm. When D momentum
an object is placed 15 cm from the lens, the
image formed is:
| A | real and magnified |
| B | virtual and diminished |
| C | real and diminished |
| D | virtual and magnified |
11. Which of these transducers converts light to heat
energy?
A Filament bulb
B Solar cell
C Solar panel
D Wind turbine
6. Why does alcohol give a cooling effect when
poured on a body?
A It evaporates without boiling
B It sends out latent heat of vaporization to
the body
C It absorbs latent heat of vaporization from
the body
D It has a low boiling point
12. If air is pumped into a ball on a cold day, on a hot
day the mass and density will:
Mass
A decrease
B remains the same
C remain the same
D increase
Density
decrease
increase
decrease
increase
