WJEC GCSE Physics (Wales) · WJEC 3420U
2 Waves and particles, forces, space, radioactivity and energy
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Waves and particles, forces, space, radioactivity and energy
- The Cosmic Microwave Background (CMB) radiation is observed uniformly across the entire sk… (4 marks, Explain)
- A convex lens can be used to form a real image of a distant object. Explain how a convex l… (4 marks, Explain)
- A fixed quantity of gas is trapped inside a syringe. The plunger is pushed in slowly so th… (4 marks, Explain)
- A fixed quantity of gas is trapped in a container at constant temperature. Explain, using … (4 marks, Explain)
- A radioactive source emits beta particles. Explain what a beta particle is and describe ho… (4 marks, Explain)
- A student has two identical-looking steel rods. One rod is a permanent magnet and the othe… (4 marks, Explain)
- A sealed metal container holds a fixed quantity of gas. The container is placed in a furna… (4 marks, Explain)
- Cosmic microwave background (CMB) radiation is detected uniformly across the entire sky. E… (4 marks, Explain)
- Scientists use observations of distant stars and galaxies to investigate the large-scale s… (4 marks, Explain)
- Red-shift observations of distant galaxies provide evidence about the universe. Describe w… (4 marks, Describe and Explain)
- Explain why scientists believe the universe began with a Big Bang. In your answer, refer t… (4 marks, Explain)
- When a current-carrying wire is placed in a magnetic field, it can experience a force. Exp… (4 marks, Explain)
- A student brings an unmagnetised iron nail close to one end of a bar magnet. Explain why t… (4 marks, Explain)
- A solenoid is connected to a direct current (d.c.) supply. Describe the magnetic field pro… (4 marks, Describe and Explain)
- A student places a plotting compass near a bar magnet. Explain what happens to the compass… (4 marks, Explain)
- A student states that all atoms contain three types of subatomic particle. State the names… (4 marks, State)
- Gamma radiation, alpha particles and beta particles are all types of nuclear radiation. Co… (4 marks, Compare)
- Explain what is meant by the term 'nuclear radiation' and describe TWO properties that dis… (4 marks, Explain)
- Describe what is meant by alpha decay and explain why the nucleus of an atom undergoes rad… (4 marks, Describe and Explain)
- A fixed quantity of gas is trapped inside a rigid container at a constant volume. Explain … (4 marks, Explain)