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Worksheets8I 9I Forces
Total questions: 28
Worksheet time: 21mins
What are forces?
A pull
A push
A twist
All of the above
If the forces on a plane are unbalanced, it will...
move
increase or decrease its speed
cruise at a steady speed
All of the above
If my car had an engine force of 20 N forward and resistive forces of 10 N backward, what is the resultant force?
10 N forward
10 N backward
30 N forward
30 N backward
What is the unit of force?
Isaacs
kilograms
Newtons
pounds
If a moving wheelbarrow has a resultant force of 0 N on it, it will...
stop
accelerate
decelerate
move at a steady speed
Why do solids expand when they are heated?
The particles get bigger
The particles vibrate more and take up more space
The particles vibrate more and get closer together
The particles stick together
What happens to the temperature of water in a beaker when it is boiling?
Goes up
Stays the same
Goes down
It depends on the starting temperature
Which graph shows how air pressure decreases with height?
A
B
C
D
Which of these forces is upthrust?
A
B
C
D
Which statement about air resistance is true?
If speed increases, air resistance decreases
If speed increases, air resistance increases
If speed decreases, air resistance increases
Speed has no effect on air resistance
The mean speed of something is...
its fastest speed
the total distance it travels divided by the total time taken
its slowest speed
its speed limit
Where is the object stopped?
V-W
W-X
X-Y
Y-Z
Which are the correct labels for the lever shown?
X= load, Y = pivot, Z = effort
X= effort, Y = pivot, Z = load
X= pivot, Y = effort, Z = load
X= load, Y = effort, Z = pivot
Which lever will make it easiest to move the rock?
A
B
C
D
Which are forces X and Y?
X is air resistance, Y is gravity
X is air resistance, Y is friction
X is weight, Y is air resistance
X is friction, Y is air resistance
Which of the following is not a unit for speed?
m/s
km/h
mph
kms
What is a 'moment' in physics?
A brief period of time
A specific point in time
An episode of madness
The turning effect of a force
What are the units for a moment?
Newtons
seconds
Newtonmetres
Newtons per metre
Which object is moving the fastest?
A
B
C
D
What forces act on cars in the opposite direction to movement?
Thrust and Air Resistance
Friction and Weight
Gravity and Thrust
Friction and Air Resistance
This instrument is used to measure...
speed
distance
force
current
Which result is anomalous?
15 N
14 N
10 N
7.5 N
Sam runs a 100 m race in 16 s. How fast was she running?
6.25 mph
6.25 m/s
8 m/s
8 mph
How could Janet make lifting the load easier?
Move the small log away from the bigger log
Push on the plank nearer the small log
Move the small log toward the bigger log
Use a shorter plank
A resultant force is...
the sum of all forces acting
the result of a force
a change in force
the force at the end
Relative speed is determined by...
Timing your speed using a light clock
Calculating using the general relativity formula
The difference in speeds of two objects
Your speed comparative to a stationary reference point
Sam pushes down on the end of a 0.5 m wrench with a force of 10 N. What moment is produced?
0.05 Nm
20 Nm
5 Nm
10.5 Nm
A bar on a pivot will balance if...
The moments on both sides are equal
The mass on each end is equal
The weight on each side is equal
The pivot stays in the same place
