Portugal · Ano 10 · Practice Sheet 28
Sheet code: PORTUGAL-G10-S28 · 20 questions
- 1.
A body starts at 13 m/s and accelerates at 4 m/s² for 9 s. Find its final velocity.
- 2.
A triangle has sides a = 8 cm and b = 12 cm with an included angle C = 45°. Find its area (to 2 d.p.).
- 3.
A force of 499 N acts on an area of 5 m². Find the pressure.
- 4.
Find the gravitational potential energy of a 18 kg object raised 39 m. (g = 9.8 m/s²)
- 5.
A population of 7,700 grows 8% per year. Find its size after 5 years (nearest whole number).
- 6.
A body starts at 18 m/s and accelerates at 2.2 m/s² for 11 s. Find its final velocity.
- 7.
A cylinder has radius 7 cm and height 15 cm. Find its volume. (π ≈ 3.14159)
- 8.
A body starts at 4 m/s and accelerates at 2.4 m/s² for 3 s. Find its final velocity.
- 9.
A wave has frequency 22 Hz and wavelength 3.33 m. Find its speed.
- 10.
A device runs at 230 V drawing 6.1 A. Find its power consumption.
- 11.
A 10 kg object moves at 17 m/s. Find its kinetic energy.
- 12.
A cone has base radius 8 cm and height 16 cm. Find its volume. (π ≈ 3.14159)
- 13.
A bag has 16 equally likely marbles, of which 5 are red. Find the probability of drawing a red marble (to 3 d.p.).
- 14.
A cone has base radius 11 cm and height 20 cm. Find its volume. (π ≈ 3.14159)
- 15.
€1,300 is invested at 4% compound interest per annum for 4 years. Find the final amount (to 2 d.p.).
- 16.
A bag has 22 equally likely marbles, of which 11 are red. Find the probability of drawing a red marble (to 3 d.p.).
- 17.
Find the force needed to accelerate a 23 kg mass at 7.4 m/s².
- 18.
A current of 6.8 A flows through a 51 Ω resistor. Find the voltage across it.
- 19.
A device runs at 206 V drawing 8.2 A. Find its power consumption.
- 20.
A bag has 29 equally likely marbles, of which 19 are red. Find the probability of drawing a red marble (to 3 d.p.).
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