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Newton's Laws
Newton's Laws
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A #physics #quiz to assess student's mastery of #Newton's #Laws of #Motion
Flashcards
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Questions
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Answers
1
What is Newton's second law of motion?
Every action has an equal and opposite reaction.
You can't have your pudding before you eat your meat.
Objects have a natural tendency to not accelerate.
A non-zero unbalanced force causes a mass to accelerate.
2
What is the net force acting on this object?
500 N left
100 N right
500 N right
100 N left
3
What is the unit of force?
m/s
Newtons
kg
m/s2
4
Gravity's acceleration on Earth is approximately...
9.81 m/s2 up
9.81 N
9.81 m/s2 down
9.81 m/s
5
Force is
How much stuff is in an object.
A push or pull.
An object's resistance to changing motion
The rate at which an object changes motion.
6
What is Newton's first law of motion?
F=ma
You can't have your pudding before you eat your meat.
Objects tend to resist a change in motion.
Every action has an equal and opposite reaction.
7
What is the acceleration of a 5 kg object with a net force of 20 N acting on it?
4 m/s2
5 m/s2
100 m/s2
25 m/s2
8
The more inertia an object has...
The less mass it has.
The easier it is to stop moving.
The harder it is to start moving.
The easier it is to accelerate.
9
What is the reaction force to you pushing down into your chair?
Chair pushes back up to you with equal size force.
Earth pulls you up with the same force.
There is no reaction force.
The chair pushes down with the same force.
10
What is the reaction to you punching the wall?
The wall hits you back, but with less force.
Nothing.
The wall hits you back with more force.
The wall hits you back with the same force.
11
What is the net force experienced by a 5 kg object accelerating at 20 m/s
2
[East]?
100 N [East]
25 N [East]
5 N [East]
100 N [West]
12
What is Newton's third law of motion?
An unbalanced force acting on a mass will change its motion.
Objects require force to cause a change in motion.
Every action has an equal and opposite reaction.
E = mc2
13
How are mass and inertia related?
Mass and inertia are both vectors.
Mass is a measurement of inertia.
Mass and inertia aren't related.
Mass is a vector and inertia is a scalar.
14
Net force is
The amount of force applied by a net.
The force that counteracts gravity.
When you add up the magnitude of all forces.
The sum of all forces acting on an object.
15
What is the acceleration experienced by this object?
10 m/s2 right
1000 m/s2 left
10 m/s2 left
5 m/s2 left
16
Acceleration is
The rate at which an object changes motion.
A push or pull.
How much stuff is in an object.
An object's resistance to changing motion
17
If you double the net force acting on an object what happens to object's acceleration?
It doubles
It disappears
It halves
The object explodes
18
Inertia is
An object's change in motion.
A bad ear infection,
A push or pull.
An object's resistance to changing motion.
