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Newton's first law
1. What is inertia?
2. Describe how inertia affects motion.
3. What is the relationship between mass and inertia?
4. Explain how Newton’s first law of motion is related to the concept of inertia.
match the following terms with definition
_____ 1. combination of all the forces acting on an object
_____ 2. force that opposes the motion of any object
_____ 3. an object’s motion will not change unless an unbalanced force acts on it
_____ 4. factor that determines the inertia of an object
_____ 5. type of force needed to overcome inertia of an object
_____ 6. tendency of an object to resist a change in motion
Terms
a. inertia
b. unbalanced force
c. friction
d. law of inertia
e. mass
f. net force
Fill in the blank with the appropriate term.
1. Newton’s first law of motion is also called the law of __________.
2. An object at rest will stay at rest unless a(n) __________ force acts on it.
3. When the car you are riding in stops suddenly, you move forward because of ______.
4. Objects with greater mass have __________ inertia.
5. If an object is not moving, __________ will cause it to remain stationary.
6. Once objects start moving, __________ keeps them moving.
7. An object’s motion will not change as long as the net force acting on it is __________.
Newton's 2nd law
Determine if the following statements are true or false.
_____ 1. The relationship between mass and inertia is described by Newton’s second
law of motion.
_____ 2. Newton determined that there is a direct relationship between force and mass.
_____ 3. Any change in velocity for any reason is called acceleration.
_____ 4. The greater the net force applied to a given object, the more it will accelerate.
_____ 5. The greater the mass of an object, the more it will accelerate when a given net
force is applied to it.
_____ 6. A net force of 1 N applied to a mass of 1 kg results in an acceleration of 0.5
m/s2.
_____ 7. Your weight equals your mass multiplied by the acceleration due to gravity.
_____ 8. A 10-kg object has greater acceleration due to gravity than a 5-kg object.
_____ 9. The acceleration of an object equals its mass times the net force applied to it.
_____ 10. The acceleration of an object due to gravity depends on the object’s initial
1. Define weight.
2. How is the weight of an object related to its mass?
3. If an object has a mass of 50 kg, what is its weight
Explain how Newton’s second law of motion can be used to calculate the acceleration
of an object.
Match each definition with the correct term.
Definitions
_____ 1. acceleration due to gravity
_____ 2. formula for weight
_____ 3. formula for acceleration
_____ 4. measure of the force of gravity pulling on an object
_____ 5. type of relationship between acceleration and mass
_____ 6. measure of the change in velocity of a moving object
_____ 7. type of relationship between acceleration and force
Terms
a. acceleration
b. weight
c. direct relationship
d. a=Fm
e. inverse relationship
f. F=m×a
g. 9.8 m/s
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