Lesson T1.2.2
T1.2.2 Biomechanics: muscles, skeleton and force Quiz: KS3 Biology, Unit 1
20 questions
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Lesson T1.2.2, Biomechanics: muscles, skeleton and force: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 1: Structure and function of living organisms, written with Revision Ninja.
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The 20 questions
-
Which unit is used to measure force?
- Newton
- Joule
- Metre per second
- Watt
-
What instrument measures force?
- A newtonmeter
- An ammeter
- A thermometer
- A metre rule
-
A newtonmeter attached to a hand grip reads 40 N. What force has been exerted?
- 0.4 N
- 40 N
- 400 N
- 4 N
-
What scientific unit is used to measure grip strength?
- Joules
- Newtons
- Pascals
- Kilograms
-
What action does a skeletal muscle perform when it shortens?
- Lengthens
- Pulls
- Pushes
- Rotates
-
In biomechanics, what acts as the pivot point for a bone lever?
- Joint
- Ligament
- Muscle
- Tendon
-
A 2 kg mass is held in the hand. Which unit describes the downward force it exerts?
- Kilogram
- Newton
- Joule
- Metre
-
What determines how much force a muscle can produce?
- Muscle size
- Skin colour
- Joint type
- Bone length
-
The forearm acts as a lever when lifting an object. What is the pivot?
- The elbow joint
- The hand
- The shoulder blade
- The wrist
-
Which grip strength reading shows the greatest force?
- 28 N
- 22 N
- 15 N
- 35 N
-
What does the study of biomechanics focus on?
- Cell division
- Chemical digestion
- Movement mechanics
- Gas exchange
-
Which scientific equipment is used to measure muscle pulling force?
- Thermometer
- Newtonmeter
- Ruler
- Stopwatch
-
Which method best reduces the effect of random error in experimental readings?
- Read from above
- Calculate a mean
- Use zero error
- Change the scale
-
What name is given to the downward force that pulls a body towards the Earth?
- Tension
- Upthrust
- Friction
- Weight
-
Why do scientists take repeat measurements during force investigations?
- To save equipment
- To reduce mass
- To increase speed
- To check reliability
-
When comparing grip strength, which variable must be controlled?
- Room temperature
- Hand used
- Shoe size
- Eye colour
-
Which unit is the standard SI measurement for mass?
- Newton
- Pascal
- Kilogram
- Joule
-
A pushed box does not move. What is the opposing force?
- Zero resistance
- Balanced friction
- Increased thrust
- Greater gravity
-
Which body part connects a muscle to a bone?
- Cartilage
- Ligament
- Nerve
- Tendon
-
What is essential when attaching a newtonmeter to test pulling forces safely?
- Loose support
- Maximum overload
- Secure fixed point
- Flexible string
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