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IB MYP Integrated Sciences e-Assessment : Types of fuels Exam Style Practice Questions - New Syllabus

Question

Simone and Shazia decided to go skiing. They went to the bus stop to get a bus to the dry ski slope. From the top of the road they saw their bus moving towards them and then stop. They felt heat coming from the engine of the bus and Shazia coughed when the smoke fumes went down her throat.
The girls got on the bus. Simone said that the fumes came from the petrol that is a form of chemical energy. Shazia nodded and took a bite out of her Kit Kat. She said the Kit Kat gave her energy to move because it also took the horrible taste of petrol fumes from her mouth. Simone decided to listen to her music. She put the batteries into the back of her personal stereo, switched it on and heard the sounds of her favourite band.
Once they got to the dry ski slope they put on their skis and waited for the ski lift to come and take them to the top of the slope.
At the top of the slope the girls adjusted their skis. They looked down the slope and Shazia said that they had a form of potential energy called gravitational energy. Simone smiled and nodded. They both pushed themselves off the top and glided quickly down the slope. Simone got to the bottom first. She told Shazia that the movement energy is called kinetic energy and she was quickest. Shazia laughed and said that she was not trying to race but will beat her next time. The girls moved quickly to the ski lift to have a race down the slope.
1 In your group, underline in blue all the types of energy in the story.
2 Now underline in red all the sources of energy.
3 Now use the story to help you draw diagrams. These should show the source of the energy and the type of energy it provides. Here is an example.
The Kit Kat, which contains food (chemical) energy, is changed into kinetic energy.
Kit Kat chemical energy \( \longrightarrow \) kinetic energy
4 In your group make a list of all the types of energy you have used today. Draw diagrams with your examples.
▶️ Answer/Explanation

1. Types of energy in the story
• heat energy
• chemical energy
• sound energy
• gravitational potential energy
• kinetic energy

These are the energy types named or described in the story. “Movement energy” is the same as kinetic energy.

2. Sources of energy in the story
• petrol in the bus
• Kit Kat / food
• batteries in the stereo
• the girls at the top of the slope / height of the slope
• the bus engine

These are the things that provide or store the energy.

3. Source \( \rightarrow \) type of energy diagrams
• petrol chemical energy \( \longrightarrow \) kinetic energy of the bus
• petrol chemical energy \( \longrightarrow \) heat energy from the engine
• Kit Kat chemical energy \( \longrightarrow \) kinetic energy of the girls moving
• batteries chemical energy \( \longrightarrow \) sound energy from the stereo
• gravitational potential energy at the top of the slope \( \longrightarrow \) kinetic energy as they ski down

A small extra note: one source can give more than one output. For example, petrol gives useful movement but also releases heat.

4. Example list of energy used today
• electrical energy for lights
• chemical energy from food
• sound energy from speakers or phone
• kinetic energy when walking or running
• thermal energy from hot water or cooking

Example diagrams for part 4
• food chemical energy \( \longrightarrow \) kinetic energy when walking
• electrical energy \( \longrightarrow \) light energy from a lamp
• electrical energy \( \longrightarrow \) sound energy from headphones
• gas / fuel chemical energy \( \longrightarrow \) thermal energy when cooking

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