NEW
Font size
S
M
L
XL
WorksheetsMotion, Force, and Pressure
Total questions: 33
Worksheet time: 17mins
Name
Class
Date
1.
It's a basic law of physics that for every force, or action, there is ...
a)
A decrease force, or action.
b)
An equal force in the same direction.
c)
An increased force, or reaction.
d)
An equal and opposite force, or reaction.
2.
Which does not describes acceleration?
a)
A bird flying south at 30 mph slows to land in a tree.
b)
A snake slithers around the base of a tree.
c)
Mrs. Knickmeyer walks faster down the hallway because she sees chocolate cupcakes.
d)
Mrs. Hoppe walks at the same speed down a straight hallway because she already has a chocolate cupcake.
3.
Which term describes the tendency of a moving object to continue moving at the same velocity unless an unbalanced force acts on it?
a)
Friction
b)
Inertia
c)
Gravity
d)
Accleration
4.
Which unit would be acceleration?
a)
N
b)
m/s
c)
Pa
d)
m/s/s
5.
What is the definition of acceleration?
a)
A change in velocity.
b)
The direction of motion.
c)
An object's speed multiplied by its mass.
d)
The rate at which an object's position changes.
6.
According to the law of conservation of momentum, when two objects collide in the absence of outside forces...
a)
velocity decreases
b)
velocity increases
c)
the objects have the same momentum before and after they collide.
d)
the objects have more momentum after they collide than they did before.
7.
Which of the following would exert the greatest gravitational force on a body?
a)
a bar magnet.
b)
a molecule.
c)
a planet.
d)
a person.
8.
A skydiver jumps out of a plane. She falls downward at a very fast speed. When she opens her parachute, she slows down. What friction slows her fall?
a)
friction
b)
gravity
c)
air resistance
d)
rolling friction
9.
A satellite orbits Earth. What would happen if Earth's gravity suddenly disappeared?
a)
The satellite would continue to orbit Earth.
b)
The satellite would move into space in a straight line.
c)
The satellite would stop moving.
d)
The satellite would fall to Earth.
10.
Objects fall at different rates on planet Earth because of their...
a)
different weights.
b)
surface area to weight ratio.
c)
mass.
d)
density.
11.
How can you increase the momentum of an object?
a)
by decreasing its velocity.
b)
by increasing its mass.
c)
by increasing its friction.
d)
by decreasing its acceleration.
12.
The fastest speed a falling object can reach is...
a)
inertia.
b)
free falling.
c)
terminal velocity.
d)
momentum.
13.
On the Moon a feather and bowling ball hit the Moon's surface at exactly the same time when dropped at the same time. The same is not true for Earth. Why?
a)
The Earth has air which creates air resistance.
b)
The Earth has a different composition than the Moon.
c)
The Moon has less gravity.
d)
The Earth has more gravity.
14.
On a graph showing distance versus time, a horizontal line represents an object that is...
a)
moving at a constant speed.
b)
increasing its speed.
c)
decreasing its speed.
d)
not moving at all.
15.
The law of universal gravitation states that any two objects in the universe that have mass, without exception,
a)
attract each other.
b)
repel each other.
c)
combine to provide a balanced force.
d)
create friction.
16.
The force of gravity on a person on the surface of a planet is called...
a)
mass.
b)
terminal velocity.
c)
weight.
d)
free fall
17.
Any force that causes an object to move in a circle is called a(n)...
a)
balanced force.
b)
unbalanced force.
c)
gravitational force.
d)
centripetal force.
18.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by two is the total force.
19.
An object that orbits another object in space is called a(n)...
a)
projectile.
b)
inertia.
c)
mass.
d)
satellite.
20.
What happens to the speed of the object over time if the line curves up on a distance vs. time graph?
a)
The object travels at a constant speed.
b)
The speed of the ball increases over time.
c)
The speed of the ball decreases over time.
d)
The speed of the ball increases at first, and then decreases as time increases.
21.
A place or object used for comparison to determine if something is in motion is called...
a)
a position.
b)
a reference point.
c)
a constant.
d)
velocity.
22.
Two objects have a certain gravitational force between them. What would happen if the distance between the objects suddenly increased?
a)
The mass of the other object would increase.
b)
The gravity between the objects would increase.
c)
The gravitational force of the objects would remain constant.
d)
The gravitational force between the two objects would decrease.
23.
Newton's 3rd law of motion states that if one object strikes another object then the second object pushes back on the first object with...
a)
the same amount of force.
b)
more force.
c)
less force.
d)
no force.
24.
If the force on the left is 20 N and the force on the right is 12 N what is the net force and direction of movement for the heart?
a)
22 N right
b)
8 N left
c)
32 N right
d)
0 N of force, no movement
25.
An index card is placed across the top of a cup. Coins are placed on the index card. If you hit the index card off the cup and the coins fall into the cup which law of Newton's describes why this occurs?
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Law of Universal Gravitation
26.
The steepness of a line on a graph is called the ...
a)
rise.
b)
run.
c)
slope.
d)
vertical axis.
27.
Speed equals distance divided by
a)
time.
b)
velocity.
c)
size.
d)
motion.
28.
An object changing direction is an example of ...
a)
speed.
b)
velocity.
c)
acceleration.
d)
constant rate.
29.
In a speed versus time graph, a straight line shows that acceleration is...
a)
decreasing
b)
increasing
c)
changing
d)
constant
30.
Which of the following is an example of increasing friction?
a)
waxing skis.
b)
adding grease to gears on a bike.
c)
throwing sand on an icy driveway.
d)
oiling a squeaky door.
31.
The product of an object's mass and velocity is called its...
a)
inertia.
b)
momentum.
c)
acceleration.
d)
force.
32.
The rate at which velocity changes is called...
a)
instantaneous speed.
b)
direction.
c)
acceleration.
d)
motion.
33.
When you know both the speed and direction of an object's motion, you know the ...
a)
average speed of the object.
b)
instantaneous speed of the object.
c)
distance the object has traveled.
d)
velocity of the object.
Reset
