WorksheetsCBA Review
Total questions: 45
Worksheet time: 51mins
Name
Class
Date
1.
the smallest part of an atom is the _____.
a)
electrons
b)
neutrons
c)
Protons
d)
elements
2.
a tiny, negatively charged particle that moves around the outside of the nucleus of an atom
a)
ion
b)
proton
c)
electron
d)
neutron
3.
a small particle in the nucleus of the atom with no electrical charge
a)
ion
b)
proton
c)
neutron
d)
electron
4.
small positively charged particles that are found in the nucleus of an atom
a)
neutron
b)
ion
c)
proton
d)
electron
5.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
6.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
7.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
8.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
9.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
10.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
11.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
12.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
13.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
14.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
15.
The correct equation to calculate speed is
a)
distance/time
b)
time/distance
c)
distance x time
d)
distance/time2
16.
Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?
a)
55km
b)
32km
c)
43km
d)
32miles
17.
Kelly runs from 4:50pm until 5:20pm at an average speed of 7km/h. How far did she go?
a)
4.5km
b)
2.5km
c)
3.5km
d)
14km
18.
Which is correct?
a)
speed = distance x time
b)
speed = speed divided time
c)
speed = Distance divide time
d)
Speed = time x speed
19.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
20.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
21.
Can be measured in meters per second (m/s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
22.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
23.
What would the d-t graph look like for an object travelling at a constant velocity?
a)
Horizontal line
b)
Straight line
c)
Curved line
24.
when did the object stayed still?
a)
first 10 seconds
b)
first 20 seconds
c)
20th ~30th seconds
d)
30th~40th seconds
25.
What are the units for velocity?
a)
m/s
b)
m
c)
s
d)
m/s2
26.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
27.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
28.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
29.
What is the formula for force?
a)
F=M/A
b)
F=MA
c)
F=AX
d)
what is force?
30.
1000 kg is the...
a)
mass
b)
weight
c)
force
d)
acceleration
31.
The force that causes a ball to fall to the ground is ____________________________
a)
gravity
b)
lubricant
c)
friction
d)
motion
32.
Accelerations are produced by
a)
forces.
b)
velocities.
c)
accelerations.
d)
masses.
33.
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
34.
A 20 kg bike accelerates at 10 m/s2. what was the force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
35.
On which surface would friction be the greatest?
a)
carpet
b)
ice
c)
snow
d)
satin
36.
What is the resistance of an object to change in its motion?
a)
weight
b)
inertia
c)
gravity
d)
friction
37.
According to Newton's third law, when one object exerts a force on a second object, what happens?
a)
The second object exerts an equal force on the first object, in the opposite direction.
b)
The second object exerts a smaller force on the first object, in the opposite direction
c)
The second object exerts an equal force on a third object, in the same direction
d)
The second object accelerates in the direction of force applied.
38.
What force stops your foot slipping on the ground when you walk?
a)
Gravity
b)
Kinetic energy
c)
Friction
d)
Upthrust
39.
If you pushed 2 objects of different mass with the same force, which will accelerate more?
a)
The object with less mass
b)
The object with more mass
c)
they will accelerate the same
d)
neither will move
40.
For the same force, how does reducing the mass of an object affect its acceleration?
a)
it decreases it
b)
it does nothing
c)
it increases it
d)
the mass cannot be changed
41.
An object is moving at a constant velocity. What can you say about the forces on it?
a)
They are unbalanced
b)
They are balanced
c)
They are all acting in the same direction
d)
There cannot be any forces on it
42.
A unbalanced force means that an object is
a)
zero net force
b)
motion of an object
c)
sitting still
d)
object at rest
43.
Which of Newtons laws explains why football teams have big, large, fast athletes.
a)
Frist and second
b)
second law
c)
first law
d)
Third law
44.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
45.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
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