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WorksheetsUjian Ilmu Pengetahuan Alam dan Sosial
Total questions: 32
Worksheet time: 29mins
Observe the image of the skull below. The main function of the bone is to ....
help move the head
protect the brain
store calcium
attach facial muscles
When walking, we can bend our knees forward. The joint that plays a role in this movement is ....
saddle joint
pivot joint
hinge joint
ball-and-socket joint
The experiment of making a hand replica with straws and thread aims to show ....
how finger bones work
the function of the skull
the relationship between muscles and joints
how the nervous system works
If someone lacks vitamin D, they are likely to experience ....
hair loss
brittle bones
stomach pain
itchy skin
Rina accidentally touches a hot pan, she immediately pulls her hand away. This mechanism shows the function of the nervous system as ....
regulating breathing
controlling emotions
providing reactions to stimuli
storing calcium
Striated muscles work ....
unconsciously
in internal organs
consciously
only during sleep
If humans did not have joints, the body would ....
remain flexible
be stiff and hard to move
jump more easily
grow faster
The ribs function to ....
protect the lungs and heart
help in walking
move the shoulders
store food reserves
When running, the calves feel tense. This is because ....
muscles are stretching
muscles are contracting
joints are locked
nerves stop working
The disease of the spine that bends to the side is called ....
lordosis
kyphosis
scoliosis
osteoporosis
What is the disease of the spine that bends to the side called?
lordosis
kyphosis
scoliosis
osteoporosis
What movement does a ball-and-socket joint allow?
only forward and backward
in all directions
only left and right
like a door
Observe the table: Type of Muscle - Location - How it Works. Smooth muscle in the digestive organ works...
consciously
unconsciously
gets tired quickly
always strong
Why can we feel pain when we fall?
because the bone is fractured
because the nervous system sends signals
because the muscles tense up
because the joints are strained
What causes osteoporosis?
iron deficiency
calcium deficiency
protein deficiency
oxygen deficiency
If the sitting posture is wrong for a long time, it can lead to bone diseases such as...
tetanus
scoliosis
muscle cramps
sprains
The heart muscle continues to work even when we are sleeping. This shows the characteristic of the heart muscle, which is...
gets tired quickly
controlled consciously
works unconsciously
can break
The experiment of gripping ice shows that...
muscles cannot withstand cold
nerves respond to cold temperatures
bones absorb cold
joints freeze
Disorders of the nervous system can cause...
difficulty moving
broken bones
enlarged muscles
cavities
Why do we need to warm up before exercising?
so bones do not break
so joints do not stiffen
so muscles do not cramp
so we sweat quickly
If the brain is the control center, then the spinal cord functions as...
food absorber
stimulus conductor
oxygen storage
blood distributor
Observe the image of someone lifting weights. This movement involves the work of...
smooth muscle
heart muscle
striped muscle
skeletal muscle
What muscles are involved when someone lifts a barbell?
Smooth muscles
Cardiac muscles
Striated muscles
Skeletal muscles
What is characterized by lordosis?
Hunched back forward
Back curved sideways
Lower back excessively curved
Brittle bones
What is the main function of the nervous system?
Protect the heart
Give shape to the body
Regulate and control body activities
Store energy
If someone is infected with Clostridium tetani, what will they experience?
Stiff muscles
Shrinking muscles
Bent bones
Broken joints
What is the relationship between calcium and vitamin D for bone health?
Both strengthen muscles
Vitamin D helps absorb calcium for bones
Calcium makes joints flexible
Vitamin D increases blood
Explain the role of joints in human body movement, include examples.
Why is the nervous system called the 'long cable in our body'?
What are the consequences if humans lack calcium and vitamin D?
Explain the differences between striated, smooth, and cardiac muscles based on their function and location.
Why is regular exercise and good posture important for the health of the musculoskeletal system?
