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Worksheets5/17 review
Total questions: 58
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
Which of the following situations shows work being done?
a)
A student is sitting in a chair and holding both boxes.
b)
A student is holding the large box 1 m above the floor.
c)
A student is standing and holding the small box.
d)
A student is lifting the small box 0.5 m from the floor to a table
2.
*
a)
F The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp.
b)
The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity
c)
The speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced.
d)
The speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced.
3.
Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?
a)
The car with the smaller mass will require less force to stop than the car with the larger mass.
b)
The car with the larger mass will maintain its velocity while traveling down the hill.
c)
The car with the smaller mass will take longer to stop than the car with the larger mass
d)
The car with the larger mass will have less inertia than the car with the smaller mass
4.
**
a)
13N
b)
7N
c)
8N
d)
12N
5.
What is the net force on the block? (click on the words to view the picture)
a)
5 Newtons up
b)
5 Newtons down
c)
15 Newtons up
d)
15 Newtons down
6.
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.
7.
The diagram shows a homemade car being pushed with a force of 25 N. The force causes the car to move at a constant speed of 3 m/s. What will happen if the force is changed to 35 N?
a)
The car will move at a constant speed of 13 m/s.
b)
The speed of the car will not change.
c)
The speed of the car will increase.
d)
The speed of the car will decrease to 1 m/s.
8.
Which best describes the one thing that changes in an experiment?
a)
Constant
b)
Control
c)
Unit of Measurement
d)
Variable
9.
What is one thing we changed in the rubber band vehicle trials?
a)
kinds of vehicles
b)
Numbers of rubber bands
c)
size of rubber bands
d)
Turns of the rubber bands
10.
What is the purpose of rubber on a tire?
a)
more friction
b)
less friction
c)
mass
d)
speed
11.
Fill in the blanks
________energy is energy of motion while ________ energy is energy that is stored and waiting to be used.
________energy is energy of motion while ________ energy is energy that is stored and waiting to be used.
a)
Kinetic and then potential
b)
potential then kinetic
12.
________________ energy is the energy of mass in motion.
a)
Kinetic
b)
Potential
c)
Moving
d)
Excited
13.
An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
14.
How does Newton’s third law explain how a rocket takes off?
a)
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
b)
The rocket is at rest until ignition.
c)
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
15.
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)
Law of inertia
b)
Law of action - reaction
c)
Law of acceleration
16.
A student leaves a pencil on a desk and it stays there until I pick it up.
a)
Law of inertia
b)
Law of acceleration
c)
Law of action - reaction
17.
A measure of how much matter an object has is--
a)
weight
b)
gravity
c)
mass
d)
volume
18.
The weight of an object _________ as it moves away from the center of Earth.
a)
increases
b)
stays the same
c)
triples
d)
decreases
19.
As an object's mass increases, its gravitational pull will ____________.
a)
decrease
b)
increase
c)
stay the same
d)
get weaker
20.
If an object has more mass, then it will
a)
weigh more.
b)
weigh less.
c)
weigh the same as an object with less mass.
d)
always have more volume than an object with less mass.
21.
Why would you weigh less on the moon compared to Earth?
a)
less air
b)
less sunlight
c)
more gravitational pull
d)
less gravitational pull
22.
What is the difference between qualitative ad quantitative
a)
Quantitative is the amount of something, but qualitative is not and is measured by its qualities.
b)
Qualitative is the amount of something, but Quanitive is not and is measured by its qualities.
c)
They are both the same thing.
d)
I don't know
23.
Trina wanted to find out which of her two rubber balls could bounce the highest. She took the first ball and dropped it onto the cement sidewalk. She then dropped the second ball from the same height on the grass. She recorded how high each ball bounced. Her experiment could be improved by
a)
measuring the time it takes for each ball to reach its maximum height
b)
bouncing both balls on the same surface
c)
dropping the second ball from a higher position
d)
bouncing each ball a different number of times
24.
A group of scientists genetically engineered a type of bean plant so it was naturally resistant to insect pests. Which of these was most likely part of their original definition of the problem they wished to solve?
a)
Keep insects away from where people live
b)
Grow bean plants with less water
c)
Use fewer chemicals pesticides
d)
Store beans longer without fear of spoilage
25.
Students are growing plants in the dark or in the light to see which grows better. They put 3 seeds in the dark and 5 seeds in the light because they know seeds are more likely to dry out in the light.
How could this experiment be improved?
How could this experiment be improved?
a)
Put all plants in the light.
b)
Put all plants in the dark (where they sprout better)
c)
Put the same number of seeds in each container.
d)
put all the plants in the light so they grow better
26.
A student is testing how a magnet causes different objects to move, by seeing how far away the magnet could be from an object. The student tested three different magnetic objects, on five different surfaces, multiple times. The students also used a blue magnet, a yellow magnet, and a green magnet. What did the students do wrong in testing their experiment?
a)
They didn't repeat their experiment a couple of times.
b)
They only had two things that were changing.
c)
They forgot to test something that was non-magnetic
d)
They had too many variables
27.
These are the things in an experiment that we have to control so that it keeps the experiment fair. (does not provide an advantage or disadvantage)
a)
dependent variables
b)
constants (controlled variables)
28.
How many independent variables can you have in an experiment?
a)
one
b)
as many as you need
29.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
30.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
31.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
32.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
33.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
34.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
35.
What famous scientist was the SI units of Force named after?
a)
Isaac Newton
b)
Galileo Galilei
c)
Albert Einstein
d)
Charles Darwin
36.
Which one is balanced?
a)
top
b)
bottom
c)
both
37.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
38.
What is the standard unit force is measured in?
a)
N
b)
lbs
c)
g
d)
m/s
39.
Find the net force: 15 N to the right, and another 15 newtons to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
40.
Calculate the net force shown in the diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
41.
What is the net force?
a)
4.2 N left
b)
4.2 N right
c)
2.2 N left
d)
2.2 N right
42.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
43.
What is the net force?
a)
11 N left
b)
11 N right
c)
3 N left
d)
3 N right
44.
An arrow can be used to represent a force. The length of the arrow represents ____________.
a)
direction of the force
b)
strength of the force
c)
mass of the force
d)
acceleration of the force
45.
Which of the following is a example of a noncontact force?
a)
musician playing piano
b)
athlete hitting a ball with bat
c)
a ball falling after you toss it in the air
d)
karate expert breaking a stack of wood
46.
A mother's hand pushing a stroller is an example of _____________.
a)
contact force
b)
noncontact force
47.
A foot kicking a ball through a goal post is an example of a _______.
a)
contact force
b)
noncontact force
48.
Force has size and direction.
a)
true
b)
false
49.
A force exerted when objects are not touching.
a)
noncontact force
b)
speed-time graph
c)
contact force
d)
air resistance
50.
For every action- there is an equal and opposite reaction.
a)
Newton's Second Law of Motion
b)
Newton's Third Law of Motion
c)
Newton's First Law of Motion
d)
noncontact force
51.
A tool measuring Earth's gravitational pull on an object
a)
spring scale
b)
force
c)
inertia
52.
Where an object is located in space
a)
position
b)
movement
c)
direction
53.
A change in position or location
a)
direction
b)
movement
c)
friction
54.
Which word would we best use to describe where the car is located?
a)
A. Pulling
b)
B. Distance
c)
C. Position
d)
D. Motion
55.
The submarine's ______system was quiet so their movement would be undetectable by the enemy.
a)
ballistics
b)
propulsion
c)
coterie
d)
lassitude
56.
What force brings the pencil down?
a)
Applied
b)
Magnetic
c)
Normal
d)
Gravitational
57.
A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll, and then starts to slow down and comes to a stop. What forces caused this ball's motion?
a)
A. Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow down and stop.
b)
B. Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop.
c)
C. The force of the hill caused the ball to roll down it, but gravity caused the ball to slow down and stop.
d)
D. Gravity caused the ball to roll down the hill, but frictional force caused the ball to slow down and stop.
58.
The picture shows a motorboat moving through water against a current. Which of the following is causing the boat to move forward?
a)
A. backward thrust from the propeller against the water that is less than the force of gravity
b)
B. forward thrust from the propeller that is equal to the backward force of the water current
c)
C. backward thrust from the propeller against the water that is greater than the force of gravity
d)
D. forward thrust from the propeller that is greater than the backward force of the water current
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