IB PHYSICS SL (Standard level)- 2024 – Practice Questions- All Topics
Topic 1.3 – Vectors and scalars
Topic 1 Weightage : 9 %
All Questions for Topic 1.3 – Vector and scalar quantities , Combination and resolution of vectors
Question
A list of four physical quantities is
acceleration
energy
mass
temperature
How many scalar quantities are in this list?
A 1
B 2
C 3
D 4
▶️Answer/Explanation
Ans: C
Examples of scalar quantities
- temperature – eg 10 degrees Celsius (°C)
- mass – eg 5 kilograms (kg)
- energy – eg 2,000 joules (J)
- distance – eg 19 metres (m)
- speed – eg 8 metres per second (m/s)
- density – eg 1,500 kilograms per metre cubed (kg/m3)
Question
Which lists one scalar and two vector quantities?
Mass, momentum, potential difference
Mass, power, velocity
Power, intensity, velocity
Power, momentum, velocity
▶️Answer/Explanation
Ans: D
Examples of vector quantities
Some examples of vector quantities include:
force – eg 20 newtons (N) to the left
weight – eg 600 newtons (N) downwards
displacement – eg 50 kilometres (km) east
velocity – eg 11 metres per second (m/s) upwards
acceleration – eg 9.8 metres per second squared (m/s2) downwards
momentum – eg 250 kilogram metres per second (kg m/s) south west