NEW
Font size
S
M
L
XL
WorksheetsChanges in Force & Motion
Total questions: 65
Worksheet time: 33mins
Name
Class
Date
1.
All changes in motion require the input of a
a)
variable
b)
change in direction
c)
force
2.
What causes a change from potential to kinetic energy?
a)
mass is increased
b)
a force is applied
c)
a decrease in temperature
3.
Force is measured in units called
a)
newtons
b)
degrees
c)
joules
4.
an abject in motion stay in motion until an unbalanced force acts upon it
a)
true
b)
false
5.
which scientist discovered laws explaining gravity?
a)
leanardo da vinci
b)
galileo galilei
c)
sir isaac newton
6.
How is force defined?
a)
push or pull
b)
electrons moving
c)
a form of energy measured in joules
7.
an object at rest stays at rest until an unblanaced force acts upon it
a)
true
b)
false
8.
an object that is at rest will begin to move if...
a)
the mass is larger
b)
unbalanced forces act on the object
c)
gravity on the object is reduced
9.
what action represents a pull?
a)
pushing a shopping cart
b)
kicking a ball
c)
closing a door
10.
in a tug of war, one team pull to right with the force of 50 newtons and the opposite team pulls to the left with 80 newtons, which direction does the rope move?
a)
right
b)
left
11.
which two measurements are needed to calculate the speed of an object in motion?
a)
time and volume
b)
volume and mass
c)
distance and time
12.
unbalanced forces acting on an object in motion could cause the object to stop moving
a)
true
b)
false
13.
if the distance of an object travels and the time it takes to travel are known, which of the following can be calculated?
a)
acceleration
b)
amount of force applied
c)
average speed
14.
unbalanced forced acting on an object could cause the object to speed up
a)
true
b)
false
15.
the rate of change of position with respect to time is
a)
motion
b)
speed
c)
force
16.
in a distance - time graph, which axis represents time?
a)
X-axis
b)
Y-axis
17.
what is the average speed of a toy car that travels 100 cm in 20 seconds?
a)
5cm/s
b)
100cm/s
c)
20cm/s
18.
if a bicycle travels 36 meters in 6 seconds, what is its average speed?
a)
36 m/s
b)
12 m/s
c)
6 m/s
19.
in a distance - time graph, which axis represents distance?
a)
X-axis
b)
Y-axis
20.
what action represents a push?
a)
sweeping the floor
b)
gravity
c)
picking up a book
21.
when 50 N of force act upon an opposing force of 35 N, the two forces represent...
a)
balanced forces
b)
unbalanced forces
c)
neutral forces
22.
unbalanced forces acting on an object in motion could cause the object to change directions
a)
true
b)
false
23.
the rate of change of position with respect to time.
a)
speed
b)
motion
c)
unbalanced forces
24.
a push or pull cannot change the motion of an object
a)
true
b)
false
25.
the change in an object's position with respect to time and in comparison to the position of other objects.
a)
motion
b)
force
c)
distance
26.
if an object is already moving and an unbalanced force is applied, this causes-
a)
a change in speed or direction
b)
no change in speed or direction
27.
a graph in which the data are repsresented by points connected by one or more lines
a)
pie chart
b)
line graph
c)
bar graph
28.
resting position refers to an object remaining in the same spot relative to another object
a)
true
b)
false
29.
every object that experiences unbalanced forces will not experience a change in motion
a)
true
b)
false
30.
what force causes a kicked ball to slow or come to a stop?
a)
friction
b)
kinetic energy
c)
potential energy
31.
to change an object's motion, directions, or speed-
a)
apply an equal force
b)
apply a balanced force
c)
apply an unbalanced force
32.
the formula to calculate speed is-
a)
force divided by distance
b)
distance divided by time
c)
mass time
d)
acceleration
33.
a device that makes work easier often by reducing the amount of effort needed to move an object
a)
a system
b)
simple machine
c)
unbalanced force
34.
simple machine that is a ramp or slope that reduces that force needed to move objects up and down heights
a)
inclined plane
b)
pulley
c)
spring scale
35.
a spring scaled measures force in what kind of units?
a)
joules
b)
newtons
c)
meters
36.
what decreases when an object is lifted using a moveable pulley?
a)
the length of the pulley's rope
b)
distance
c)
amount of force needed
37.
the advantage of using an inclined plane is to reduce the -
a)
fore needed to lift object
b)
size of the object
c)
time needed to move the object
38.
what decreases when an object is moved using an inclined plane?
a)
the mass of an object
b)
the distance the object moves
c)
the force needed to move the object
39.
a disadvantage of using an inclined plane to lift a heavy object is -
a)
heavy objects are difficult to lift
b)
the object must be moved a greater distance
c)
heavy objects take up more space
40.
a simple machine consisting of a wheel over which a rope or chain is pulled in order to lift heavy objects
a)
inclined plane
b)
spring scale
c)
pulley
41.
an inclined plane reduces the force needed to move an object by -
a)
decreasing the pull of gravity
b)
the mass of the object
c)
increasing the distance the object moves
42.
a flat sloped surface is -
a)
a flat plane
b)
perpendicular plane
c)
inclined plane
43.
the object to be moved using a machine
a)
force
b)
load
c)
system
44.
the force Earth exerts on objects on or near its surface is -
a)
gravity
b)
inertia
c)
thermal energy
45.
a pulley attached to the object to be moved, which reduces the force needed to move the object
a)
a movable pulley
b)
fixed pulley
c)
tug of war rope
46.
a grooved wheel with a rope around it is -
a)
pulley
b)
spring scale
c)
anchor
47.
device with few or no moving parts used to do work
a)
complex machine
b)
elaborate machine
c)
simple machine
48.
what is a push or pull called that can change the motion of an object, which is measured with a spring scaled in newton units?
a)
convection
b)
force
c)
system
49.
what tool measures a pulling force in newtons by the tension on a spring
a)
spring scale
b)
fixed pulley
c)
triple beam balance
50.
some simple machines make work harder
a)
true
b)
false
51.
what describes the rate of movement or how fast something moves?
a)
speed
b)
distance
c)
time
52.
a combination of fixed and fixed and movable pulleys is a pulley system
a)
true
b)
false
53.
the steeper th eincline -
a)
the greater the force needed to lift the load
b)
the lesser the force needed to lift the load
54.
inclined planes and pulleys both lower the amount of force needed to raise a load or object
a)
true
b)
false
55.
one example of a pulley often seen outside a school or post office is -
a)
school bell
b)
slanted drive way
c)
raised flag
56.
average speed is equal to -
a)
total distance divided by total time
b)
distance divided by time
c)
time divided by total distance
57.
how does an inclined plane help lift something?
a)
requires less effort to be used over a greater distance
b)
require more effort to be used over a greater distance
58.
when using a pulley to lift an object up, which direction should the pulley rope be pulled?
a)
up
b)
down
59.
when using a pulley to lift an object up, which direction should the pulley rope not be pulled?
a)
up
b)
down
60.
the formula for speed is -
a)
S = m/v
b)
S = d/t
c)
S= d/m
61.
example of an inclined plane seen in everyday life is -
a)
a lane in a bowling alley
b)
a football field
c)
wheelchair ramp
62.
simple machine is a device with few or no moving parts
a)
true
b)
false
63.
in a pulley system when more pulleys are used, more work is needed to lift heavy objects
a)
true
b)
false
64.
how does a pulley system help lift something?
a)
it doubles the amount of force needed
b)
it reduces the amount of force needed to lift heavy objects
c)
it increases the amount of force need to lift heavy object
65.
an elevator is an example of a pulley system used to lift heavy loads
a)
true
b)
false
Reset
