AS Level Physics U6 Introductory Quiz

Description

Quiz for AS Level Physics lesson 1 on Unit 6 Energy, work & power.
Jeffrey Piggott
Quiz by Jeffrey Piggott, updated more than 1 year ago
Jeffrey Piggott
Created by Jeffrey Piggott over 5 years ago
159
0

Resource summary

Question 1

Question
What is the approximate kinetic energy of an Olympic athlete when running at maximum speed during a 100 m race?
Answer
  • A 400 J
  • B 4000 J
  • C 40 000 J
  • D 400 000 J

Question 2

Question
Two identical, perfectly elastic spheres have the same mass m. They travel towards each other with the same speed v along a horizontal frictionless surface. Which statement about the sum of the kinetic energies of the spheres is correct?
Answer
  • A The sum of their kinetic energies before impact is zero.
  • B The sum of their kinetic energies before impact is 1/2 mv^2.
  • C The sum of their kinetic energies after impact is zero.
  • D The sum of their kinetic energies after impact is mv^2.

Question 3

Question
A piston in a gas supply pump has an area of 500 cm2 and it moves a distance of 30 cm during one stroke. The pump moves the gas against a fixed pressure of 4000 Pa. How much work is done by the piston during one stroke?
Answer
  • A 60 J
  • B 6.0 × 10^3 J
  • C 6.0 × 10^5 J
  • D 6.0 × 10^7 J

Question 4

Question
A railway engine accelerates a train of total mass 1200 tonnes (1 tonne = 1000 kg) from rest to a speed of 75 m s^–1. How much useful work must be done on the train to reach this speed?
Answer
  • A 1.7 × 10^6 J
  • B 3.4 × 10^6 J
  • C 1.7 × 10^9 J
  • D 3.4 × 10^9 J

Question 5

Question
The diagram shows a hydroelectric power station. The reservoir is linked to the turbines by a pipe of uniform cross-sectional area. Water flows from the reservoir, through the pipe and through the turbines at a constant rate. Which statement about the change of energy of the water as it moves from X to Y is correct?
Answer
  • A It gains both gravitational potential energy and kinetic energy.
  • B It loses gravitational potential energy and gains elastic potential energy.
  • C It loses gravitational potential energy and gains kinetic energy.
  • D It loses both elastic potential energy and gravitational potential energy.

Question 6

Question
A concrete cube of side 0.60 m and uniform density 2.0 × 10^3 kg.m^–3 is lifted 5.0 m vertically by a crane. What is the change in potential energy of the cube?
Answer
  • A 2.2 kJ
  • B 21 kJ
  • C 59 kJ
  • D 450 kJ
Show full summary Hide full summary

Similar

GCSE AQA Physics 1 Energy & Efficiency
Lilac Potato
Physics: Energy resources and energy transfer
katgads
Physics P1
themomentisover
Energy, Mass, & Conversions
Selam H
Physics Unit 2 - Force, Acceleration And Terminal Velocity
Ryan Storey
OCR Physics P2 revision cards
Alex Howard
P2 Quiz
Leah Firmstone
GCSE Physics P7 (OCR) - Light, Telescopes, and Images
Josh Price
Quantum physics
hmccain
P2a (part 2)
juliasutton