# Midterms

20 Questions

This quiz covers the topics in. There are ten items in this assessment.

• 1.
Distance and displacement  of an object has the same value
• A.

Sometimes

• B.

Never

• C.

Always

• 2.
What is the density (in kg/m3 of a cube whose side 2 m and whose mass is 8 kg?
• A.

0

• B.

1

• C.

2

• D.

4

• E.

8

• 3.
What is the density (in kg/m3 which displaces about 500 m3 in a container and whose mass is 50000?
• A.

0.1

• B.

100

• C.

1000

• D.

5000

• E.

10000

• 4.
The period of a simple pendulum follows this formula The length of the pendulum's string is 980 m. What is the period of vibration of the pendulum
• A.

29.5

• B.

12.3

• C.

33.1

• D.

45.6

• E.

62.8

• 5.
is the formula for the simple harmonic motion of a pendulum. What is the length of a pendulum's string if the period of the pendulum's vibration is 2π (2 times pi)?
• A.

4.5

• B.

9.8

• C.

12.2

• D.

41.5

• E.

61.5

• 6.
No matter where you press a toothpaste tube, paste comes out of the opening. This is an application of
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 7.
Airplanes can fly because of this principle
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 8.
This principle is related to buoyancy
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 9.
We can inhale the exhaust fumes of a jeepney even when we are inside the moving vehicle. This is an application of
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 10.
The angle at which an object starts to slide across a surface is not dependent on its weight
• A.

True

• B.

False

• 11.
The force and the acceleration may have the same value and units
• A.

Sometimes

• B.

Always

• C.

Never

• 12.
An object which remains at rest means no external force are acting on it
• A.

Sometimes

• B.

Always

• C.

Never

• 13.
Hydraulics is an application of this principle
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 14.
Aerodynamics is an application of this principle
• A.

Pascal's principle

• B.

Archimedes ' principle

• C.

Bernoulli's principle

• 15.
The vertical velocity of a projectile at the peak of its flight is
• A.

Dependent on the final horizontal velocity

• B.

Equal to -9.8

• C.

Equal to 9.8

• D.

Zero

• 16.
Unit for pressure
• A.

Newtons

• B.

Joules

• C.

Molecules

• D.

Atmosphere

• 17.
Friction of layers in a liquid
• A.

Osmosis

• B.

Viscosity

• C.

Turbulence

• D.

Laminar flow

• 18.
A rectangular solid with a density of 10 kg per cubic meter has a height of 2000 cm. It has a length of 3 cm but the width is unknown. What is the pressure applied to the ground underneath it?
• A.

20000 Pa

• B.

20 Pa

• C.

200 Pa

• D.

1.0 atm

• E.

1 mm Hg

• 19.
Force per unit area
• A.

Joules

• B.

Watts

• C.

Power

• D.

Energy

• E.

Pressure

• 20.
A person's mass is proportional to his
• A.

Weight

• B.

Energy

• C.

Work

• D.

Power

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