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Science Quiz

Last Science quiz

QuestionAnswer
Newton’s First Law of Motion An object at rest remains at rest, and an object in motion remains in motion, unless acted upon by an unbalanced force.
Newton's Second Law of Motion Acceleration is produced when unbalanced forces act on a mass.
Newton's Third Law of Motion For every action, there is an equal but opposite reaction.
Accelaration change in speed OR direction of motion
Inertia Resistance to a change in motion
What causes Acceleration? unbalanced forces
According to Newton’s First Law of Motion, why would a student on roller skates eventually stop moving? Friction
Why do roller coasters need to have a lap bar or shoulder bar? Your body will want to stay and you will fall out of the car if it moves and the lap bar attaches you to the car so you don’t fall out.
A basketball hits the floor with a force of 50N. What is the force and direction exerted by the floor on the ball? The force that comes back at the ball is 50N and it comes from the floor.
What forces cause a roller skater to move? You push backwards on the ground, the ground moves forwards and so do you and the wheels reduce the amount of friction between your feet and the ground.
Created by: danagu
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