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Laws of Motion
Laws of Motion
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Laws of Motion
Flashcards
21 cards
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Questions
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Answers
1
What is inertia?
The mass of an object
The opposing force of gravity
Another name for unbalanced forces
The tendency of an object to stay in motion or at rest
2
A person is measured on the moon, and on Earth. Which statement would be true?
The person would have mass on Earth but not on the moon.
The mass would be the same on the moon as it is on Earth.
The person's mass on Earth would be double on the moon.
Person's mass on the the moon, would be twice that on Earth.
3
How long will an object remain at rest, according to Newton's First Law of Motion?
Until noon
As long as unbalanced forces keep acting on it
It can't rest.
Until an unbalanced force occurs
4
For every action, there is an equal and opposite reaction is which law of motion?
The Law of Gravity
Newton's 2nd Law
Newton's 1st Law
Newton's 3rd Law
5
Gravity always tries to change the velocity of objects. True or False?
False
True
6
Who developed the three laws of motion that govern classical physics?
KIng Henry
Sir Isaac Newton
Eratosthenes
Sir Walter Raleigh
7
Which is NOT how you could tell if a moving object is receiving an unbalanced force?
It will keep moving at the same speed in the same direction.
It might slow down.
It might change direction.
It might speed up.
8
A person is measured on the moon and on Earth. Which statement would be true?
mass is different, weight is the same
mass is the same, weight is less on the moon
mass is the same, weight is greater on moon
mass and weight are less on the moon
9
How can you tell if an object is in motion?
I'll be able to see the forces.
Its position will change in relation to other objects.
The object will look different.
It will remain in the same position.
10
The amount of force that gravity has on an object is affected by what factors?
The object's mass
The object's distance from the gravitational force
The object's mass and distance from gravitational force
The object's height
11
For every ____________ there is an equal and opposite ________________.
action, action
reaction, action
reaction, reaction
action, reaction
12
Why do you lean towards the left when a car turns right?
because of velocity
because of inertia
because of gravity
because of buoyancy
13
Gravity and magnetism are examples of what kind of forces?
Frictional
Gravitational
Non-contact
Contact
14
Newton's second law of motion uses the following formula...
M=FxA
E=mc2
C=2d
F=MxA
15
The acceleration of gravity on Earth is...
none of these
1.6 m/s2
89 m/s2
9.8 m/s2
16
The amount of force needed to move an object is measured in...
Newtons
Kilometers
Seconds
Grams
17
A greater force is required to move an object with a greater mass than one with a smaller mass.
True
False
18
Which of Newton's Laws describes the amount of force applied to accelerate an object's mass?
Newton's 4th Law
Newton's 2nd Law
Newton's 3rd Law
Newton's 1st Law
19
Which of Newton's Laws is demonstrated by a ball rolling to a wall then stopping?
Newton's 3rd Law
Newton's 1st Law
Newton's Law of Deceleration
Newton's 2nd Law
20
Why is it difficult to scoot a bed from one end of the room to the other?
Momentum
Deceleration
Friction
Gravity
21
Acceleration is the same thing as velocity. True or False?
False
True
