WorksheetsTest Review
Total questions: 25
Worksheet time: 27mins
Name
Class
Date
1.
What was Sir Isaac Newton known for?
a)
His hair
b)
His discovery of the laws of motion
c)
How good he was at math
d)
How athletic he was
2.
What is gravitational force?
a)
a force that attracts any object
b)
a force that pushes any object
c)
a force that shrinks any object
d)
a force that enlarges anyobject
3.
What is the Universal law of gravitation equation?
a)
G=F ⋅ m1⋅m2/r2
b)
F=G ⋅ m1⋅m2/(r)2
c)
F=G ⋅ r2/m1⋅m2
d)
G=F ⋅ r2/m1⋅m2
4.
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
a)
more
b)
same
c)
dosen't matter
d)
less
5.
Complete the following statement: The closer away two planets are the _______ the gravitational force between them.
a)
more
b)
same
c)
dosen't matter
d)
less
6.
If the masses of two objects were doubled the gravitational force of attraction between them would
a)
Double, 2F
b)
Reduce by half, F/2
c)
Reduce by a quarter, F/4
d)
Quadruple, 4F
7.
Two comets are orbiting each other with same force. Then they are moved a distance 3x away. What is the new force
a)
F/3
b)
F/9
c)
F/2
d)
F/6
8.
Which is larger, the Sun's pull on the Earth or Earth's pull on the Sun?
a)
The Sun's pull on the Earth is larger.
b)
THe Earth's pull on the Sun is larger
c)
They pull on each other equally
d)
The Sun's pull on the Earth is twice as large as Earth's pull on the Sun.
9.
A 4 kg object is moving at 6 m/s on a frictionless surface. How much force is needed to keep the object moving at the same velocity and in the same direction?
a)
24 N
b)
0 N
c)
10 N
d)
2 N
10.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
11.
Which has more Inertia? (needs more force to move)
a)
Truck
b)
iPad
c)
Lab Table
d)
A skateboard
12.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
13.
F=Ma
An object of mass 10 kg is accelerated upward at 2 m/s2. What net force is required?
An object of mass 10 kg is accelerated upward at 2 m/s2. What net force is required?
a)
20 N
b)
2 N
c)
5 N
d)
0 N
14.
If you double the mass of an object with the same force apply on it, the acceleration will
a)
double
b)
cut in half
c)
the same
d)
zero
15.
What force slows objects down and keeps them from moving?
a)
Balanced force
b)
Acceleration
c)
Friction
d)
Gravity
16.
What happens when unbalanced forces act on an object at rest?
a)
the object remains at rest
b)
the object begins moving in an unpredictable direction
c)
the object begins moving in the direction of the net force
d)
the object begins moving opposite to the direction of net force
17.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 3rd Law
c)
Newton's 2nd Law
d)
Newton's Law of Universal Gravitation
18.
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's Law of Universal Gravitation
19.
If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's Law of Universal Gravitation
20.
In a football game, two players tackle each other so hard that they both fly in opposite directions after they hit each other. What law of motion is this an example of?
a)
Newton's 2nd Law
b)
Newton's 3rd Law
c)
Newton's 1st Law
d)
Conservation of Momentum
21.
A student leaves a pencil on a desk and it stays there until I pick it up.
a)
1st Law
b)
2nd Law
c)
3rd Law
d)
Law of Conservation of Energy
22.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
23.
If two forces act on an object in the same direction, the net force is the _____________
a)
the difference between the two forces
b)
the sum of the two forces
c)
Only one of the forces acts on the object
d)
DOOMSDAY!
24.
When dropped from a height, what causes a feather not to fall at 9.8 m/s?
a)
Not enough mass
b)
Air Resistance
c)
Gravity not pulling as hard
d)
Wind
25.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
100 %
