1.
State what is meant by a kinetic energy store. [1]
JD SCIENCE
Energy
Answer all questions. Show working. Answers are in a separate file on the Worksheets page — do not look at them until you have finished.
2.
State what is meant by a gravitational potential store. [1]
3.
State what is meant by an elastic store. [1]
4.
State what is meant by conservation of energy. [1]
5.
State what is meant by efficiency. [1]
6.
State what is meant by thermal conductivity. [1]
7.
State what is meant by specific heat capacity. [1]
8.
State what is meant by power. [1]
9.
State what is meant by work done. [1]
10.
State what is meant by a non-renewable energy resource. [1]
11.
Amira is asked about a kinetic energy store in a AQA Physics paper.
(a) Describe a kinetic energy store. [2]
(b) Explain why a kinetic energy store is important in this topic. [3]
12.
Amira is asked about a gravitational potential store in a AQA Physics paper.
(a) Describe a gravitational potential store. [2]
(b) Explain why a gravitational potential store is important in this topic. [3]
13.
Amira is asked about an elastic store in a AQA Physics paper.
(a) Describe an elastic store. [2]
(b) Explain why an elastic store is important in this topic. [3]
14.
Amira is asked about conservation of energy in a AQA Physics paper.
(a) Describe conservation of energy. [2]
(b) Explain why conservation of energy is important in this topic. [3]
15.
Amira is asked about efficiency in a AQA Physics paper.
(a) Describe efficiency. [2]
(b) Explain why efficiency is important in this topic. [3]
16.
Amira is asked about thermal conductivity in a AQA Physics paper.
(a) Describe thermal conductivity. [2]
(b) Explain why thermal conductivity is important in this topic. [3]
17.
KE of 2 kg at 4 m/s [3]
18.
GPE of 2 kg raised 5 m (g=10) [3]
19.
Efficiency if 80 J useful from 200 J [3]
20.
Power if 600 J is transferred in 12 s [3]
21.
SHC: 8000 J heats 1 kg by 4°C. c = [3]
22.
Work done by a 20 N force over 3 m [3]
23.
Amira carries out a AQA-style required practical linked to energy stores and transfers. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
24.
Amira carries out collecting valid data for energy stores and transfers. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
25.
Amira carries out drawing a graph for energy stores and transfers. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
26.
Amira carries out evaluating a method about energy stores and transfers. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
27.
Compare a kinetic energy store with a gravitational potential store. [4]
28.
Compare a gravitational potential store with an elastic store. [4]
29.
Compare an elastic store with conservation of energy. [4]
30.
Compare conservation of energy with efficiency. [4]
31.
Apply your knowledge of specific heat capacity to this situation: E = mcΔθ [3]
32.
Apply your knowledge of power to this situation: P = E/t [3]