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2025 IAPS P1
| Question | Answer |
|---|---|
| Timmy rolls model cars down a ramp to see which is the fastest. He rolls each car 5 times and concludes his hypothesis that the red car would be fastest was not supported. Samantha does the same experiment. What is Samantha doing? | Replication |
| When talking about the law of reflection, incidence (light moving toward the surface) and reflection angles (The angle the light reflects) are ______ to each other. | Equal |
| Johnny tests to see the amount of force it takes to move materials of different mass. He applies the same force to each and measures its movement. David does the same experiment but tests each material 5 times. How did David improve the experiment. | Added Repetition |
| Light is moving towards a surface at an angle of 33 degrees. What is the angle of reflection? | 33 degrees |
| Amy is graphing an experiment. She predicts that the amount of water fed to a plant will affect its growth. What should she put on the x axis? | amount of water/independent |
| Amy is graphing an experiment she predicts that the amount of water fed to a plant will affect its growth. What should she put on the y axis? | how much the plant grows/independent |
| Toby places a pencil in a cup of water. He notices that the pencil doesn't look straight. What movement of light is this | refraction |
| Bobby wonders why the sun shines across the sky instead of one place. He learns it's from atmospheric particles in the atmosphere that makes the sky blue. What kind of light movement is this? | scattering |
| How can you tell if the forces acting on an object are balanced ? | The object is at rest or moving at a constant speed, it's balanced. |
| Imagine that a parked car is hit from the left with 30,000 N of force at the exact time is hit from the right with a 40,000 N of force. Which way would it move. | Moves to the left |
| What is an example of society affecting science? | Funding research |
| What is an example of science affecting society? | Problem Solving |
| Why would a fish in a lake hear a boat motor first rather than a friend sitting on the beach? | Molecules of water are closer together than molecules of air. |
| Why would putting your ear to a door help you to listen to a conversation inside? | Sound travels fastest through a solid |
| If you were doing a scientific experiment on the study of gravitational forces, what would you do to ensure your data is reliable? | Replication and Repetition |
| Why do most cultures choose a non-ecofriendly type of energy? | High Cost |
| Jack wanted to test whether or not the number of ants can affect the growth of plants. Plant 1, has 10 ants on it, plant 2 has 20 ants, and plant 3 has 30 ants. All the other variables are constant. What is the independent variable? | The independent variable is the amount of ants. |
| Ray created a hypothesis that if he gives more homework to his students, their test scores will increase. What would be the dependent variable? | The dependent variable is the test scores. |
| What are the differences between visual models and mathematical models? | Mathematical models use equations and symbols to show quantitative data while visual models are graphical representations. |
| Why would someone choose a computer model over a physical model? | A computer model can show complex, process and show lots of data. |
| What type of medium can sonar move through the fastest? | Solid objects because sonar is sound and sound moves fastest through solid objects. |
| How do different mediums affect the movement of waves? | The closer the molecules of the medium, the faster the wave moves through it. |
| If a wave has a low frequency, what is the wavelength related to frequency? | Low frequency = long wavelength. |
| If the wavelength of a wave is short, what is the frequency? | High frequency. |
| What is potential and kinetic energy? | Potential energy is stored energy, and. |
| What is kinetic energy? | kinetic energy is the energy an object has when in motion |
| How does potential energy and kinetic energy relate to each other? | Inverse relationship – one increases the other decreases. |
| If a wavelength falls under microwaves, what other wave can is ALSO be? | infrared |
| What is the smallest interval of wavelengths that can be categorized? | visible light |
| A battery is hooked up to a speaker. The transformations are ______ -> Electrical -> Sound | Chemical |
| No energy is 100% efficient. In a lamp, electrical energy is turned into light energy, but also something else. What is it? | Thermal |
| What type of force is responsible for making it slower to fall down while holding a rope than while not? | Friction |
| When jumping on a trampoline, the springs are stretched as you fall, and push you back up. What type of force is this? | Elastic |
| What is the law of conservation of energy? | Energy cannot be created or destroyed but may be changed from one form to another. |
| How does friction affect energy transformations? | Friction turns some of the energy into thermal energy. |
| From ultraviolet to gamma rays, the wavelength decreases, what will happen to the frequency? | Increase in frequency. |
| Radio waves have a low frequency, what would its wavelength be? | Long wavelength. |
| What happens when you have too much exposure to ultraviolet radiation? | sunburn, skin cancer |
| What type of electromagnetic radiation is related to thermal energy? | infrared radiation |
| Timmy puts a pot on the stove and fills it with water. He notices after some time it starts boiling. What type of heat transfer does this scenario represent? | convection |
| Billy places an ice cube in his hand and notices it starts melting. What heat transfer does this represent? | conduction |
| 2 magnets held so the opposite poles are facing each other. The magnets push away from each other. What type of force does this represent? | Non-contact force/magnetism |
| Two teams are playing a game of tug of war, what forces are acting on this game? | Contact forces - friction, applied force |
| EM radiation falls in different types of wavelengths. What is the order of EM radiation from longest the shortest wavelength? | Radio waves, Microwaves, Inferred waves, Ultraviolet waves, "soft" x-rays, "hard" x-rays, Gamma rays. |
| Explain the relationship between wavelength and frequency. | Longer wavelengths correspond to lower frequencies, and shorter wavelengths correspond to higher frequencies. |
| What waves on the EM spectrum have the most energy? | x-rays and gamma rays |
| What is the relationship between a long wavelength and frequency? | Long wavelength = Low Energy |
| How is thermal energy a form of kinetic energy? | Thermal Energy is the movement of molecules |
| What is necessary for sound energy to travel? | a medium |
| Describe the flow of thermal energy as a hot potato cools down. | Thermal energy in the hot potato moves to the much cooler air. |
| A speed graph is shown that is curved upwards. How is this object moving? | Positive acceleration |
| Arnold wants to make a model with a balanced force. How will the magnitude of the forces be related? | They will be equal |
| If a car travels 500m in 10 seconds how fast is it going? | The car is going 50 m/s. |
| If a balanced force acts on an object, what is the total Net force? | zero |
| What does mass measure? | The amount of matter in an object |
| Two people are trying to pull a Lego brick apart and one is pulling with a force of 10 newtons to the right while the other is pulling with a force of 11 newtons to the left, what is the net force? | 1 newton to the left |
| A person is walking but stops for an hour to relax, what would the speed graph would look like at this point? | horizontal line |
| A graph presents a student's journey from one point of a hallway to another. If they walk at a constant speed, what would the graph show? | A sloped line moving away from the origin |
| What would be the net force of an unbalanced object? | Greater than zero |
| What two factors affect friction? | Surface roughness and surface area |
| How does a balanced forces affect the way an object moves? | A balanced force will not change an objects motion. |
| What kind of force is gravity? | a non-contact force. |
| What two factors affect gravitational force? | mass of the object and the distance between the two objects |
Created by:
Brewermms
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