1.
Pressure increases when:
A
Force decreases
B
Area increases
C
Area decreases
D
Mass decreases
2.
Vera is studying applications of atmospheric pressure. She learns that atmospheric pressure is used to lift objects with suction cups. How does a suction cup work?
A
By creating a vacuum that holds it in place
B
By using magnetic force
C
By using adhesive
D
By using static electricity
3.
A stiffer spring has:
A
Smaller spring constant
B
Zero spring constant
C
Larger spring constant
D
Negative spring constant
4.
Tina is studying planetary data. She knows that the orbital speed of a planet depends on its distance from the Sun. Which planet has a higher orbital speed: Venus or Saturn?
A
Venus
B
Saturn
C
Both have the same speed
D
Cannot be determined
5.
Quinn is studying the center of mass of a body. He knows that the center of mass is the point where the entire weight of the body can be considered to act. For a uniform rod, where is the center of mass located?
A
At one end
B
At the midpoint
C
At the quarter point
D
Outside the rod
6.
Fatima is studying the measurement of atmospheric pressure. She learns that a barometer is used to measure atmospheric pressure. Which type of barometer uses mercury?
A
Aneroid barometer
B
Mercury barometer
C
Digital barometer
D
Water barometer
7.
Laura is studying the manometer. She learns that a manometer can be used to measure the pressure of a gas in a container. What is the pressure if the manometer reading is equal on both sides?
A
Zero pressure
B
Atmospheric pressure
C
Gauge pressure
D
Absolute pressure
8.
What is meant by the resultant force?
A
Force that stops motion
B
Single force having same effect as multiple forces
C
Force due to gravity only
D
Force applied by an object
9.
Which of the following is an example of action-reaction pair?
A
Weight and mass
B
Push on wall and wall pushing back
C
Friction and gravity
D
Speed and velocity
10.
Nadia is studying Pascal's principle. She learns that Pascal's principle applies to fluids. What is a fluid?
A
Only liquids
B
Only gases
C
Liquids and gases
D
Solids and liquids
11.
Qasim is learning about applications of Hooke's Law. He understands that Hooke's Law is used in weighing scales. What type of scale uses Hooke's Law?
A
Digital scale
B
Spring scale
C
Triple beam balance
D
Analytical balance
12.
Rachel is studying orbital motion. She knows that the Moon orbits Earth due to gravity. What is the centripetal force for the Moon's orbit?
A
Gravitational force from Earth
B
Centrifugal force
C
Frictional force
D
Electromagnetic force
13.
The unit of spring constant is:
A
Newton
B
Newton per meter
C
Meter
D
Pascal
14.
The working liquid in a mercury barometer is:
A
Water
B
Oil
C
Mercury
D
Alcohol
15.
George is learning about atmospheric pressure. He understands that atmospheric pressure is measured with a barometer. What is the average atmospheric pressure at sea level in mmHg?
A
760 mmHg
B
750 mmHg
C
700 mmHg
D
800 mmHg
16.
Victor is studying the principle of moments. He uses a seesaw and balances two children of different weights. What must be equal for the seesaw to be balanced?
A
The clockwise and anticlockwise moments
B
The forces applied
C
The distances from the pivot
D
The weights of the children
17.
Uma is studying the conditions of equilibrium. She knows that for a body to be in equilibrium, the sum of all forces and the sum of all torques must be zero. What is the second condition of equilibrium?
A
Sum of all forces is zero
B
Sum of all torques is zero
C
Both A and B
D
The body must be at rest
18.
Xia is studying the manometer. She learns that a manometer can measure gauge pressure. What is gauge pressure?
A
Absolute pressure
B
Pressure relative to atmospheric pressure
C
Pressure in a vacuum
D
Pressure in a closed container
19.
Hina is studying the principle of moments. She uses a meter rule to balance weights on both sides. What is the principle that she is applying?
A
Principle of moments
B
Law of conservation of energy
C
Newton's second law
D
Law of conservation of momentum
20.
If mass of a body is doubled and force remains same, acceleration will:
A
Double
B
Become half
C
Remain same
D
Become zero
21.
Waleed is learning about applications of atmospheric pressure. He understands that atmospheric pressure is used in pneumatic systems. Which of the following is a pneumatic system?
A
Hydraulic lift
B
Brake system in cars
C
Tire inflation
D
Electric motor
22.
Xia is learning about liquid pressure. She understands that liquid pressure increases with density and depth. In which liquid would the pressure be greater at the same depth?
A
Water
B
Oil
C
Mercury
D
Alcohol
23.
Why do camels have wide feet?
A
To run fast
B
To increase pressure
C
To decrease pressure
D
To reduce weight
24.
Bilal is studying the moment of a force. He knows that the moment of a force depends on the magnitude of the force and the perpendicular distance from the pivot. What is the formula for the moment of a force?
A
Moment = Force × Distance
B
Moment = Force / Distance
C
Moment = Mass × Acceleration
D
Moment = Work / Time
25.
Which is an application of Pascal’s Law?
A
Barometer
B
Hydraulic lift
C
Thermometer
D
Speedometer
26.
Ahmed is studying the concept of force. He knows that force is a push or a pull. What is the SI unit of force?
A
Newton
B
Joule
C
Watt
D
Pascal
27.
Nora is studying the disadvantages of friction. She knows that friction causes energy loss in machines. What is a method to reduce friction?
A
Using lubricants
B
Increasing the roughness of surfaces
C
Increasing the weight of the object
D
Removing all lubrication
28.
Sam is studying the average orbital speed of satellites. She knows that the orbital speed is given by the formula v = 2πr/T. What does T represent in the formula?
A
Orbital period
B
Radius of orbit
C
Speed of light
D
Gravitational constant
29.
Mohamed is learning about applications of the manometer. He understands that a manometer can measure small pressure differences. Which type of manometer is sensitive to small pressure changes?
A
Mercury manometer
B
Water manometer
C
Digital manometer
D
All of the above
30.
David is studying orbital motion. He knows that satellites orbit Earth due to gravity. What is the direction of the gravitational force on a satellite?
A
Towards the center of Earth
B
Away from the center of Earth
C
Tangential to the orbit
D
In the direction of motion