BARU
Ukuran huruf
S
M
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XL
Lembar kerjaForces and Motion
Total soal: 11
Worksheet time: 11mins
Nama
Kelas
Tanggal
1.
What simple machine is a toothbrush based on?
a)
wheel and axle
b)
inclined plane
c)
lever
d)
wedge
2.
At what point in the diagram does the pendulum have the MOST kinetic energy?
a)
A
b)
B
c)
C
d)
All 3 points have the same amount of kinetic energy
3.
What is the difference between a simple machine and a compound machine?
a)
More than 1 person is required to operate a compound machine
b)
A compound machine always has an engine or motor in it
c)
A compound machine is made of 2 or more simple machines
d)
A simple machine never has moving parts
4.
A crowbar is what type of simple machine?
a)
lever
b)
screw
c)
pulley
d)
wheel and axle
5.
Which is an example of a wedge?
a)
seesaw
b)
roller skate
c)
knife
d)
brick
6.
Lebron shoots a basketball. At what point does the basketball have the most potential energy?2 characters remaining
a)
When he is holding it.
b)
When he is moving it.
c)
At the top of its arch.
d)
When it is moving down.
7.
What would you use a pulley to do?
a)
cut a steak
b)
hold pieces of wood together
c)
lift a car
d)
trim bushes and plants
8.
In which situation are the forces operating on an object unbalanced?
a)
A stack of books rest on a table.
b)
A car has a constant motion of 60 miles per hour.
c)
Two sides of a balance both support 20 kg.
d)
A baseball falls at a faster and faster speed.
9.
The ancient Egyptians most likely used inclined planes to do what?
a)
transport water
b)
keep time
c)
build pyramids
d)
chop wood
10.
Which simple machine would you use to chop wood?
a)
inclined plane
b)
wedge
c)
pulley
d)
screw
11.
Mark is holding a ball in the air. When he drops it, what type of energy transformation occurs?
a)
kinetic to potential
b)
potential to heat
c)
heat to kinetic
d)
potential to kinetic
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