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Laws of motion

Key terms and definitions about Newton's laws of motion

What is Newton's first law of motion? An object at rest remains at rest. and An object in motion remains in motion.
What is Inertia? The tendency of an object to remain at rest or in motion unless a force acts on it.
What is Newton's second law of motion? The acceleration of an object depends on the mass of the object and the size of the force applied.
What is the equation for acceleration? Acceleration=force/mass
What is Newton's third law of motion? When a force is applied to an object, the object exerts an equal force in the opposite direction.
What is Momentum used for? Momentum is used to find the force needed to stop a moving object.
True of False. If there is a heavy object in a wagon going down a slope, the acceleration of the wagon will be fast. False.
Why do you slow down and stop when you coast on a bike? Friction causes the bike to slow down and eventually stop.
A fireman turning on the hose gets pushed backwards by the water flowing out is what law of motion? Newton's Third law.
Rolling a bowling ball which results in a strike uses what law of motion? Newton's First Law.
Between kicking a soccer ball and kicking bowling ball with the same force and having the soccer ball go a lot further is example of what law of motion? Newton's Second Law
When pushing a toddler and an adult on a swing with the same force but having the toddler go twice as high as the adult is an example of what law of motion? Newton's Second Law
Jumping off the ground, is an example of what law of motion? Newton's Third Law
If there is a card accident between a semi truck and a car, the car will have the worst damage. Why? The semi truck needed more momentum to stop because of it has more mass.
What happens to objects when two balanced forces act on it? The object remains at rest.
Created by: kolby.crowell