WorksheetsExploring Cells and Physical Forces
Total questions: 24
Worksheet time: 12mins
What is the basic unit of life in all living organisms?
Tissue
Cell
Organ
Organism
Which part of the cell contains the genetic material?
Cytoplasm
Nucleus
Cell membrane
Mitochondria
What is the function of the mitochondria in a cell?
Protein synthesis
Energy production
Photosynthesis
Cell division
Which of the following is a specialised cell?
Red blood cell
Skin cell
Bone cell
All of the above
What is the main function of the human skeleton?
To produce energy
To support and protect the body
To digest food
To circulate blood
Which type of joint is found in the shoulder?
Hinge joint
Ball and socket joint
Pivot joint
Fixed joint
What is the primary function of muscles?
To store fat
To produce hormones
To enable movement
To protect organs
Which type of muscle is found in the heart?
Skeletal muscle
Smooth muscle
Cardiac muscle
Voluntary muscle
What is the law of reflection?
The angle of incidence is equal to the angle of refraction
The angle of incidence is equal to the angle of reflection
Light travels in a straight line
Light bends when it enters a different medium
What happens to light when it passes from air into water?
It speeds up
It slows down
It disappears
It remains unchanged
Which colour of light has the shortest wavelength?
Red
Green
Blue
Violet
What is the unit of frequency for sound waves?
Metre
Hertz
Decibel
Newton
What part of the ear is responsible for converting sound waves into electrical signals?
Eardrum
Cochlea
Ear canal
Ossicles
What is the formula for calculating work done?
Work done = Force × Distance
Work done = Mass × Acceleration
Work done = Force × Time
Work done = Mass × Velocity
If a force of 10 N is applied to move an object 5 metres, what is the work done?
15 J
50 J
5 J
100 J
What is a moment in physics?
The rate of doing work
The turning effect of a force
The energy stored in an object
The speed of an object
Which of the following is a unit of moment?
Newton
Joule
Newton-metre
Watt
What is the function of the cell membrane?
To control the entry and exit of substances
To produce energy
To store genetic information
To synthesise proteins
Which part of the skeleton protects the brain?
Rib cage
Spine
Skull
Pelvis
What type of joint is found in the knee?
Ball and socket joint
Hinge joint
Pivot joint
Saddle joint
Which type of muscle is under voluntary control?
Cardiac muscle
Smooth muscle
Skeletal muscle
Involuntary muscle
What is refraction?
The bending of light as it passes through a medium
The bouncing of light off a surface
The spreading of light
The absorption of light
What is the speed of sound in air at room temperature?
1500 m/s
343 m/s
299,792 m/s
1000 m/s
If a force of 20 N is applied at a distance of 2 metres from a pivot, what is the moment?
10 Nm
40 Nm
20 Nm
60 Nm
