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Worksheetsม3 Newton's First Law
Total questions: 15
Worksheet time: 5mins
Name
Class
Date
1.
Newton's 1st Law is also called the Law of ...
a)
Friction
b)
Inertia
c)
Unbalanced forces
d)
Newtons
2.
An object in motion tends to stay in motion unless an ___ force acts on it.
a)
unbalanced
b)
balanced
3.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
4.
Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.
a)
at rest
b)
moving
c)
in one spot
d)
inertia
5.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
6.
Objects at rest remain at rest and objects traveling at a steady rate in a straight line continue that way until a _________acts on them.
a)
force
b)
velocity
c)
inertia
d)
acceleration
7.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
8.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
9.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
10.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
11.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
12.
What is the net force of this object?
a)
0N
b)
50N
c)
25N
d)
5N
13.
This model shows the forces applied to a box. However, this model DOES NOT show ________________________.
a)
the forces acting in opposite directions
b)
that the forces are unequal
c)
that student B is pushing harder
d)
the actual amount of the forces
14.
Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?
a)
The ribbon will move to the left and group A will win the tug-of-war.
b)
The ribbon will move to the left and group B will win the tug-of-war.
c)
The ribbon will move to the right and group B will win the tug-of-war.
d)
The ribbon will move to the right and group A will win the tug-of-war.
15.
An airplane is travelling at a constant speed of 540 mph. Explain the forces at work on the plane.
a)
Unbalanced, because the plane is moving forward not backards
b)
Balanced, because the speed is constant and there is no change in direction
c)
Balanced, because the plane is not falling to a lower altitude
d)
Unbalanced, because the plane is in motion
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