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Grade 10 · Physics

Grade 10 Physics diagnostic

16 questions on motion & graphs, forces & equilibrium, energy, work & power, momentum & collisions, thermal physics, waves & sound and electricity & circuits, plus 2 from Grade 9. Answer what you can, then check your answers to see which topics are secure and what to practise next.

16 questions7 topicsAbout 20 minutesSet 4 of 5

Skip a question if you do not know the answer. It is better than guessing, because it shows what to practise.

1Motion & graphsIn a model without air resistance, an object is launched vertically upward at 45 m/s on a model planet where g = 8 m/s². Find its time to maximum height. Round to 3 decimal places if needed. Answer in s.
s
2Motion & graphsSigned velocity changes from 4 m/s to 5 m/s in 15 s. Find the average acceleration. Round to 3 decimal places if needed. Answer in m/s².
m/s²
3Forces & equilibriumAn ideal spring obeys F = kx with k = 420 N/m. A force of 20 N is applied within its linear range. Find its extension. Round to 3 decimal places if needed. Answer in m.
m
4Forces & equilibriumA sliding block has normal force 340 N and kinetic friction coefficient 0.8. Find the friction-force magnitude in this model. Round to 3 decimal places if needed. Answer in N.
N
5Energy, work & powerA model device transfers energy at constant power 45 W for 8 s. Find the transferred energy. Round to 3 decimal places if needed. Answer in J.
J
6Energy, work & powerAn ideal linear spring has k = 340 N/m and extension 45 cm. Find the stored elastic energy. Round to 3 decimal places if needed. Answer in J.
J
7Momentum & collisionsMomentum changes by +36 kg·m/s during 90 ms. Find the signed average net force. Round to 3 decimal places if needed. Answer in N.
N
8Momentum & collisionsA 3 kg object has signed velocity 4 m/s on a chosen axis. Find its signed momentum. Round to 3 decimal places if needed. Answer in kg·m/s.
kg·m/s
9Thermal physicsMix 10 kg at 10 °C with 2 kg at 79 °C of the same liquid. Assume equal constant specific heat, no phase change, negligible container heat capacity and no losses. Find equilibrium temperature. Round to 3 decimal places if needed. Answer in °C.
°C
10Thermal physicsA 1.9 kg sample with specific heat 900 J/(kg·°C) warms by 13 °C. No phase change or heat loss occurs. Find energy supplied. Round to 3 decimal places if needed. Answer in J.
J
11Waves & soundAn echo returns after 1100 ms. The sound speed in this medium is 330 m/s. Find the distance to the stationary reflector. Round to 3 decimal places if needed. Answer in m.
m
12Waves & sound62 complete oscillations take 53 s. Find the period. Round to 3 decimal places if needed. Answer in s.
s
13Electricity & circuitsA model device uses constant power 1275 W for 14 h. Find the energy in kilowatt-hours. Round to 3 decimal places if needed. Answer in kWh.
kWh
14Electricity & circuitsA theoretical 26 V ideal source supplies parallel ohmic resistors 40 Ω and 16 Ω. Find total source current. Round to 3 decimal places if needed. Answer in A.
A

From Grade 9

These questions check skills from the grade below, so gaps can be spotted early.

15Motion & graphs (Grade 9)A rover travels 283 m in 10 s, then 255 m in 26 s. Find its average speed for both stages. Round to 3 decimal places if needed. Answer in m/s.
m/s
16Motion & graphs (Grade 9)A robot moves 135 m east and then 4 m west along a straight line. Find the total distance travelled. Round to 3 decimal places if needed. Answer in m.
m