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SCIENCE UNIT 2 CH 2

SCI

QuestionAnswer
VOCAB: an event or process that leads to a result or change Cause
VOCAB: a result or change that happens because of an event or process Effect
VOCAB: to apply a force Exert
VOCAB: a push or pull that can change the motion of an object Force
VOCAB: speed in a particular direction Velocity
VOCAB: the amount of matter that makes up an object Mass
VOCAB: to reach a conclusion using evidence and reasoning Infer
VOCAB: a force between an object and the surface it is moving over Friction
VOCAB: the energy that an object has because it is moving Kinetic Energy
VOCAB: the energy that is stored in an object or system Potential Energy
Think back to our investigation of the same force exerted on the table tennis ball and golf ball. Why did the table tennis ball go farther and faster than the golf ball? The table tennis ball had a smaller mass, so the force exerted made it go faster and farther.
Why might two objects be affected differently if the same strength is exerted on them? If objects have a different mass, the larger object will need more strength to move it the same distance as a smaller object.
Mass is measured in: Grams
Wheelchairs are often designed differently based on their intended purpose. Wheelchairs used for wheelchair racing are built for speed. That means they need to be __________________ than other wheelchairs. smaller/lighter
Wheelchair rugby players need stability—they crash into each other often, and it’s important that they don’t tip over in a collision. For this reason, rugby wheelchairs are made: _________ larger/heavier
Object B is more massive than Object A. If you apply the same strength force to both objects, which object will have a greater change in velocity? _________ Object A
Complete the following sentence: Firing the thrusters on the pod would cause it to move in the opposite direction if… ...the mass of the pod is less than regular missions
Complete the following sentence: Firing the thrusters on the pod would cause it to slow down and hit the space station if… ...the mass of the pod is larger than in regular missions
An object is moving to the left. In which direction would a force need to be exerted to make this object speed up? Left/Same
An object is moving to the left. In which direction would a force need to be exerted to make this object slow down? Right/Opposite
An object is moving to the left. In which direction would a force need to be exerted to make this object stop? Right/Opposite
Object A: Mass of 1 Object B: Mass of 4 The same strength force is exerted in the same direction on each object. Why would Object A go faster than Object B? Because Object A has less mass and Object B has more mass, which means that Object B will need more force to go the same speed as Object A, so Object A goes faster.
Created by: $Addison$
 

 



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