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Test #1

Total questions: 101

Worksheet time: 51mins

Name
Class
Date
1.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
2.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

3.

Why do we use graphs in science?

a)

to record and display data

b)

to show trends in data

c)

to predict what will happen if we extend the experiment

d)

all of these are correct

4.

The things that are changing in an experiment

a)

Variables

b)

Questions

c)

Hypothesis

d)

Data

5.

What is a constant/control in an experiment?

a)

Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

b)

It's the variables that the scientist changes in the experiment

c)

It's the variables that are being measured in an experiment

6.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
7.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

8.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
9.
The summary at the end of an experiment that explains the results is... 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
10.

a sentence asked to gain information

a)

demonstration

b)

question

c)

scientific method

d)

experiment

11.

What is the name of this part?

a)

stageclips

b)

leg

c)

body tube

d)

coarse adjustment knob

12.

What is the name of this part?

a)

arm

b)

eyepiece/ocular lens

c)

nosepiece

d)

objective lens

13.
A microscope is an instrument that.
a)
makes faraway objects look closer.
b)
makes small objects appear larger.
c)
decreases the size of small objects.
d)
increases the size of small objects.
14.

Revolving nosepiece

a)

When focusing a specimen, always start with the ____ objective lens.

b)

The type of microscope in most science classes is the ___ microscope.

c)

Total magnification of a microscope with an eyepiece lens of 10X & a high power objective of 40X

d)

The part the objectives are attached to, can be rotated to click lenses in place

15.

True or false: You want your lens to be touching your slide.

a)

True

b)

False

16.

Used to hold and/or mix solid and liquid materials

a)

beaker

b)

graduated cylinder

c)

test tube

d)

erlenmyer flask

17.

Used to measure specific volume of liquid

a)

beaker

b)

graduated cylinder

c)

test tube

d)

erlenmyer flask

18.

Used to find the mass of an object

a)

metric stick

b)

digital scale

c)

hot plate

d)

triple beam balance

19.

Used to find the mass of an object

a)

meter stick

b)

digital scale

c)

petri dish

d)

triple beam balance

20.

Which equipment allows you to drop a small amount of liquid?

a)

dropper

b)

test tube

c)

graduated cylinder

d)

flask

21.

Which equipment heats objects with an open flame?

a)

hot plate

b)

thermometer

c)

bunsen burner

d)

beaker

22.

This is used to hold test tubes.

a)

fire extinguisher

b)

thermometer

c)

beaker

d)

tongs

23.

Which of following are examples of personal protective equipment for lab?

a)

Seat belts & air bags

b)

Hard hats and knee pads

c)

Googles & gloves

d)

Life jacket & flotation devices

24.

What is this piece of lab equipment used for?

a)

Measures mass

b)

Measures length

c)

Measures volume

d)

Measures temperature

25.

What is this piece of equipment used for?

a)

Measure volume

b)

Measure temperature

c)

Measure mass

d)

Measure length

26.
What is used to protect your eyes from chemicals, broken glass, and fire?
a)
Fire blanket
b)
Eye wash
c)
Goggles
d)
Flask
27.
What is this item? 
a)
Petri Dish
b)
Forceps
c)
Graduated Cylinder
d)
Test Tube
28.

This is used to pick up small objects in the science lab

a)

test tube brush

b)

tweezers

c)

forceps

d)

test tube

29.

This is used to clean chemicals or debris (stuff) out of your eyes

a)

test tube holder

b)

eye wash

c)

eye dropper

d)

lab apron

30.

Newton's 1st Law is also called the Law of ...

a)

Friction

b)

Inertia

c)

Unbalanced forces

d)

Newtons

31.

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

32.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
33.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
34.
 What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
35.

If the forces acting on an object are balanced, then its motion will not change

a)

True

b)

False

36.

What is the net force acting on this box?

a)

8N to the right

b)

5N to the left

c)

5N to the right

d)

9N to the left

37.

What is the net force acting on this box?

a)

8N to the right

b)

5N to the left

c)

0N

d)

6N to the left

38.

What is the net force acting on this box?

a)

16N to the right

b)

4N to the left

c)

0N

d)

8N to the left

39.

combine and form a net force of zero

a)

unbalanced forces

b)

newton's first law

c)

balanced forces

d)

inertia

40.

combine and form a net force of anything but zero

a)

unbalanced forces

b)

newton's first law

c)

balanced forces

d)

inertia

41.

states that if the net force acting on an object is zero, the motion of the object will not change (object in motion stays in motion, object at rest stays at rest until an outside force acts on it)

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

d)

Newton's Fourth Law

42.

If a ball is in motion, how do balanced forces effect it?

a)

it will slow the ball down

b)

the ball will speed up

c)

the ball will continue to move at a constant speed & in the same direction

d)

the ball will stop

43.

the sum of all the forces acting on an object

a)

balanced forces

b)

net force

c)

unbalanced forces

d)

friction

44.

Force=Mass x Acceleration

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

45.

Isaac Newton stated for every action there is an

_________ and _________ reaction.

a)

equal and same

b)

equal and opposite

c)

unequal and same

d)

unequal and opposite

46.
The ______of an object tends to make the object resist being set into motion.
a)
mass
b)
force
c)
motion
d)
unbalanced forces 
47.

A force is a ________________________ that acts on an object.

a)

push

b)

pull

c)

push or pull

48.

Looking at the image. Decide if this is balanced or unbalanced.

a)

Unbalanced

b)

Balanced

49.

The picture shows a weightlifter holding the barbell over his head.

The force of gravity pulling down on the barbell is 756 newtons.

How many newtons of force are exerted by the weightlifter to hold the barbell up?

a)

No Newtons

b)

756 Newtons

c)

368 Newtons

d)

14767 Newtons

50.

An inflated balloon released from rest moves horizontally.

The law that best explains this event is

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Law of Gravity

51.

A dictionary weighing 15 Newtons is placed on a desk.

What is the force that the desk exerts on the dictionary?

a)

none

b)

15 N

c)

1.5 N

d)

150 N

52.

The diagram below shows unequal opposing forces.

Which way will the wagon move?

a)

The cart will move to the right.

b)

The wagon will move to the left.

c)

The wagon will remain stationary.

d)

The wagon will move left and then right and then stop.

53.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
54.

You push against a wall and the wall is pushing back on you.

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action Reaction

55.

What is the unit for FORCE?

a)

N (Newtons)

b)

lbs (pounds)

c)

g (grams)

d)

m/s (meters per second)

56.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
57.

The girls in this picture represent ________ forces (or 2 objects in equilibrium). 

a)
kinetic
b)
balanced
c)
unbalanced
d)
chemical
58.

What is the net force on the box shown in the picture?

a)

10 N to the left

b)

10 N to the right

c)

60 N to the left

d)

50 N to the right

59.

The gravitational force exerted by an object depends on its

a)

volume

b)

mass

c)

weight

60.

Why teachers need to be reflective practitioners?

a)

To solve situations that affect their classes

b)

To comply with teaching policies

c)

For curriculum development

61.

Which of the following best describes reflective teaching?

a)

A process of thinking over and analyzing teaching practices to improve learning outcomes

b)

Sitting down with individual students to discuss progress

c)

Using mirrors in the classroom

d)

None of the answers are correct

62.

Which is the best time to self-assessment?

a)

A month after the lesson

b)

two weeks later

c)

Right after the lesson

63.

2. Which is an example of a quantitative observation?

a)

a. The leaves are small and rough.

b)

b. I want to buy four mangoes.

c)

c. It smells sweet.

d)

d. The mass of one leaf is 10 grams.

64.
What is the research-based order for the 5E lesson design?
a)
Engage, Explore, Explain, Elaborate, Evaluate
b)
Engage, Explore, Explain, Elaborate, Evaluate, Engage, Explore, Explain, Elaborate
c)
Explain, Engage, Explore, Elaborate, Evaluate
d)
Engage, Evaluate, Explain, Explore, Elaborate 
65.
Which "E" represents a hands-on/minds-on activity students do?
a)
Engage
b)
Explore
c)
Explain
d)
Elaborate
66.
Which "E" identifies how the students will show the teacher their understanding of the content/skill?
a)
Engage
b)
Evaluate
c)
Explain
d)
Elaborate
67.

What is one of the first things you should do when teaching a new lesson?

a)

Formalize STEM concepts

b)

Activate prior knowledge

c)

Assign homework

d)

Instruct campers to build their robot

68.

When should you Evaluate student learning and progress?

a)

In the beginning of the lesson

b)

At the end of the lesson

c)

During the lesson

d)

You should consistently be evaluating

69.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
70.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
71.
What is the reaction force to a foot pushing down on the floor?
a)
The foot going through the floor
b)
The floor pushing back against the foot
c)
The floor breaking to the foot
72.
How much force is needed to accelerate a 3kg skateboard at 5m/s2?
a)
8N
b)
1.6N
c)
0.6N
d)
15N
73.
How much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?
a)
36 N
b)
12 N
c)
3 N
d)
0.33 N
74.
What are the appropriate units to describe acceleration?
a)
m/s
b)
m/s2
c)
cm
d)
there are no units associated with acceleration
75.

What two variables define force?

a)

speed and velocity

b)

mass and acceleration

c)

mass and velocity

d)

distance and time

76.
A car is 2000kg and accelerating at 20m/s2, what is the net force applied to it?
a)
40000 N
b)
100 N
c)
5 N
d)
200 N
77.

If I apply the same force to a ping pong ball and a bowling ball, which one will accelerate farther and faster?

a)

ping pong ball

b)

bowling ball

c)

I have no idea

78.
What is the acceleration of an object traveling at a constant velocity?
a)
10 m/s2
b)
0 m/s2
c)
250 m/s2
d)
20 m/s2
79.
An object accelerates 5 m/s2 when a force of 20 newtons is applied to it. What is the mass of the object?
a)
4 Kg
b)
20 Kg
c)
0.5 Kg
d)
2 Kg
80.

According to Newton's second Law, which would take more force to slow down?

a)

The silver car

b)

The green car

c)

They would both take the same force

81.
How can Newton's second law be represented  mathematically? 
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
82.
45 m/s2 is the... 
a)
Mass
b)
Force 
c)
Acceleration
d)
weight
83.
A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
a)
2.2m/s2
b)
7.0m/s2
c)
5.7m/s2
d)
70m/s2
84.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
85.

( Fill in the blank) Long hair should be ____________ in the laboratory.

a)

tied back

b)

cut

c)

down

d)

curled

86.
Keeping your work area neat and clean is important because:
a)
My teacher is a neat-freak
b)
I won't lose my supplies in the clutter.
c)
It keeps the room from looking messy.
d)
It helps prevent accidents.
87.
Part of lab safety includes reading the lab procedure...
a)
before doing the lab
b)
while doing the lab
c)
after doing the lab
d)
only if you think you really need it
88.

When is it OK to eat or drink at the lab tables?

a)

Always

b)

Only during group work, not during labs

c)

Never

d)

Whenever I'm hungry

89.
You should never ______ chemicals in the lab. 
a)
taste
b)
touch
c)
smell
d)
all of the above
90.

Lab work should be started immediately when you enter the class

a)

True

b)

False

91.

What should you do with your hands after an experiment?

a)

Throw your gloves away

b)

Wash your hands with soap and water

c)

Grab all the trash and throw it away

d)

Nothing your hands are good

92.
Name this item
a)
Florence flask
b)
Stirring rod 
c)
Test tube
d)
Test tube holder
93.
a)

hat rack

b)

scale

c)

thingamabob

d)

test tube rack

94.

Safe or Unsafe: Grace thought a substance smelled weird so she took a deep whiff of it. She didn’t think it smelled poisonous and tasted a little bit of the substance.

a)

safe

b)

unsafe

95.

What would be used to measure temperature?

a)

Beaker

b)

Stopwatch

c)

Thermometer

d)

Graduated Cylinder

96.

Flammable materials, like alcohol, should never be dispensed or used near...

a)

an open door

b)

an open flame

c)

another student

d)

a sink

97.

Is the force of attraction that causes an apple to fall to the ground

a)

Tension force

b)

Applied force

c)

Gravitational force

d)

Normal force

98.

What force ultimately slows the roller coaster to a stop?

a)

Applied

b)

Normal

c)

Friction

d)

Gravitational

99.

Which of the following describes the direction of friction?

a)

always to the left

b)

same direction as the direction of motion

c)

opposite the direction of motion

100.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
101.

combine and form a net force of anything but zero

a)

unbalanced forces

b)

newton's first law

c)

balanced forces

d)

inertia

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