2020 WAEC (WASSCE) Physics Past Questions

A country's constitution could be derived from the following sources except?

1. A.A. judicial precedents✓ Correct
2. B.B. customary sources
3. C.C. statutory sources
4. D.D. party manifestoes

After each of the following sentences, a list of possible interpretations is given. Choose the interpretation that is given. Choose the interpretation that is most appropriate for each sentence.  That nonchalant attitude of Jonah irks me. This means that Jonah's attitude

1. A.baffles me
2. B.irritates me✓ Correct
3. C.amazes me
4. D.amuses me

Which of the following units is not fundamental?

1. A.Metre✓ Correct
2. B.Kilogram
3. C.Joule
4. D.Candela

If y varies directly as the square root of (x + 1) and y = 6 when x = 3, find x when y = 9

1. A.8
2. B.7✓ Correct
3. C.6
4. D.5

From the words or group of words lettered A to E below each of the following sentences, choose the one that is nearest in meaning to the underlined word or group of words as it is used in the sentence. The clerk was dismissed for dereliction of duty

1. A.insurbordination✓ Correct
2. B.irresponsibility
3. C.laziness
4. D.dishonesty
5. E.negligence

From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences. My mother ______ to my leaving the dishes unwashed last night

1. A.did not take kind
2. B.does not take kind
3. C.did not take kindly
4. D.does not take kindly✓ Correct

Public opinion is formed through the following channels except

1. A.A. Cabinet✓ Correct
2. B.B. Elections
3. C.C. Mass media
4. D.D. Political parties

From the words lettered A to D, choose the word that has the same vowel sound as the one represented by the underlined letter(s). sheath

1. A.meadow✓ Correct
2. B.weather
3. C.heart
4. D.beach

In the diagram above, O is the center of the circle, |SQ| = |QR| and ∠PQR = 68°. Calculate ∠PRS

1. A.34o
2. B.45o
3. C.56o
4. D.62o✓ Correct
5. E.68o

(i) The home network of a family has internet access. A server configured to control user access to the network. State two problems that will likely happen if the children in the family have uncontrolled access to the internet   (ii) The home network of a family has internet access. A server configured to control user access to the network. Suggest how the problems in 1(a)(i) can be prevented.   1(b) The home network of a family has internet access.       A server configured to control user access to the network.      Give one reason for the user control access   c(i) To have access to the network, each user logs in with a username and password. The flowchart in Figure 1 illustrates the authentication process required to log in. Use the information below to complete the flowchart by placing the letters A to E in the appropriate flowchart symbol numbered (i) to (v) :   A - "Please, enter password to log in" B - Is the username found? C - Search the username in the database. D - Check the password. E - Enter the username. (i) ___________________________________________   c(ii) A - "Please, enter password to log in"       B - Is the username found?       C - Search the username in the database.       D - Check the password.       E - Enter the username. (ii) ___________________________________________     c(iii) A - "Please, enter password to log in"        B - Is the username found?        C - Search the username in the database.        D - Check the password.        E - Enter the username. (iii)___________________________________________   c(iv)  A - "Please, enter password to log in"         B - Is the username found?         C - Search the username in the database.         D - Check the password.         E - Enter the username. (iv) ___________________________________________ c(v) A - "Please, enter password to log in"       B - Is the username found?       C - Search the username in the database.       D - Check the password.       E - Enter the username. (v) ___________________________________________