Free Printable CSEC Physics - 02 Laws and Theories Forces

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Worksheets

CSEC Physics - 02 Laws and Theories Forces

Total questions: 41

Worksheet time: 51mins

Name

Class

Date

1.

The three laws of pressure are known as

a)

Newton's Law,

Charles's Law, Galileo's Law

b)

Pressure Law, Boyle,'s Law Newton's Law

c)

Boyle's Laws, Charles's Laws, Pressure Law

d)

Galileo's Law, Avogadro's Law, Hooke's Law

2.

Which law states:

For a fixed mass of gas at constant volume, the pressure is directly proportional to its absolute temperature.

a)

In 1662, Robert Boyle

b)

In 1678, Robert Hooke

c)

In 1787, Jacques Charles

d)

Pressure Law

3.

WHO's law states that the applied force F = a constant k times the displacement or change in length x, or $F=kx.$

The value of k depends not only on the kind of elastic material under consideration but also on its dimensions and shape.

a)

In 1662, Robert Boyle

b)

In 1678, Robert Hooke

c)

In 1787, Jacques Charles

d)

In 1811, Amedeo Avogadro

4.

Which law states:

The pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant.

a)

This is Charles's Law

b)

This is Newton's Law

c)

This is Boyl's Law

d)

This is Avogadro's Law

5.

The volume of a given mass of gas varies directly with the absolute temperature of the gas when pressure is kept constant.

a)

This is Charles's Law

b)

This is Hooke's law

c)

This is Boyl's Law

d)

This is Aristotle's Law

6.

What is 'Ideal Gas Law' ?

a)

Boyle's law

b)

Charles Law

c)

Pressure Law

d)

All or the above

7.

In the pressure laws what do the letters P, V, n, refer to

a)

P = Pressure

V = Volume

n = newtons

b)

P = Pressure

V = Velocity

n = newtons

c)

P = Power

V = Velocity

n = newtons

d)

P = Pressure

V = Volume

n = amt. of gas

8.

In the pressure laws what do the letters T, R, Z refer to

a)

T = Temperature

R = Radius

Z = Pressure

b)

T = Temperature

R = gas constant

Z = gases

c)

T = Time

R = Rise

Z = Pressure

d)

T = Time

R = Run

Z = gases

9.

$F_s=-kx$

a)

This formula shows Charles law

b)

This formula shows Avogadro's law

c)

This formula shows Hooke's law

d)

This formula shows Boyle's law

10.

Which law states that when a system is in equilibrium the sum of its CLOCKWISE MOMENTS equals the sum of its ANTICLOCKWISE MOMENTS.

a)

The Principle of Motion

b)

The Principle of Movement

c)

The Principle of Moment

d)

The Principle of Time

11.

Which is Newton's 3rd Law

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

12.

Which is Newton's 1st Law

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

13.

Which is Newton's 2nd Law

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

14.

Which is also called the law of inertia?

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

15.

Which is also called the law of acceleration?

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

16.

Which is also called the law of opposing forces?

a)

The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.

b)

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.

c)

A body at rest or moving at a constant speed in a straight line, will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

17.

$F=ma$

a)

Is the formula for the law of Inertia

b)

Is the formula for the law of Acceleration

c)

Is the formula for the law of Opposing Forces

18.

$F_{net}=0,$ When velocity is consant

a)

Is the formula for the law of Inertia

b)

Is the formula for the law of Acceleration

c)

Is the formula for the law of Opposing Forces

19.

$F_{AB}=-F_{BA}$

a)

Is the formula for the law of Inertia

b)

Is the formula for the law of Acceleration

c)

Is the formula for the law of Opposing Forces

20.

_________ is the unit of Spring Constant

a)

N

b)

N/m

c)

m

d)

kg

21.

According to Hooke's law; Force is equal to -

a)

Spring Constant × Extension

b)

Spring Constant ÷ Extension

c)

Spring Constant + Extension

d)

Spring Constant - Extension

22.

If the original length of a spring is 20m and its extended length is 30m. What is the extension?

a)

10m

b)

20m

c)

45m

d)

75m

23.

A bungee rope has a spring constant of 5N/m.

How much a person must weigh in Newton if we want it to extend (stretch) 10m?

a)

20N

b)

20cm

c)

50N

d)

50cm

24.

What is the spring constant of a bungee rope in N/m if a person weighs 100 N if we want it to extend (stretch) 20m?

a)

5N/m

b)

5N/cm

c)

10N

d)

10N/m

25.

If a bungee rope has a spring constant of 10 N/m. How far will it extend (stretch) if a person who weighs 300 N is placed on it?

a)

21m

b)

21miles

c)

30m

d)

30cm

26.

________________ force acts on an object when it falls.

a)

Friction

b)

Electromagnet

c)

Upthrust

d)

Gravity

27.

__________________ is the force acting on two rubbing hands

a)

Friction

b)

Electromagnet

c)

Upthrust

d)

Gravity

28.

Energy is transferred as heat between two objects of ___________ temperatures.

a)

differing

b)

rising

c)

same

d)

cooling

29.

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

a)

increases

b)

cools

c)

decreases

d)

levels

30.

The upward force exerted by a liquid on an object immersed in or floating on the liquid

a)

gravity

b)

normal force

c)

buoyant force

d)

pressure

31.

What is the formula for density?

a)

density = mass x volume

b)

density = mass / volume

c)

density = mass + volume

d)

density = mass - volume

32.

Which box has a higher density?

a)

A

b)

B

33.

Pressure =

a)

$\frac{force}{area\ }\$

b)

$force\ \times volume$

c)

$\frac{area}{force}$

d)

$\frac{volume}{pressure}$

34.

efficiency =

a)

$total\ power\times100\%$

b)

$power\ output\times\ power\ input$

c)

$\frac{useful\ power\ input}{power\ output}\ \times50\%$

d)

$\frac{useful\ power\ output}{power\ input}\ \times100\%$

35.

Potential energy is the energy a body has due to.

MAY HAVE MORE THAN ONE CORRECT ANSWER

a)

It's size

b)

its position in a force field

c)

altitude

d)

Its state

36.

Kinetic energy is the energy a body

has due to its

a)

size

b)

mass

c)

motion

d)

shape

37.

What is the gravitational field strength of Earth?

a)

10N

b)

10N/Kg

c)

$10N/Kg^2$

d)

$10N/Kg^{10}$

38.

The size of the force of gravity depends on the following.

Choose all correct answer/s

a)

Mass of the object

b)

How far apart the object is

c)

Whether an object is on the right side

d)

Whether the object is on the left side

39.

A net force of 255 N is applied to a certain object.

As a result, the object accelerates with an acceleration of 22 m/s²

What is the mass of the object?

a)

$56.1ms^2$

b)

$11.6\ ms^2$

c)

$233\ ms^2$

d)

$277\ ms^2$

40.

A 50 kg girl is standing in a lift that is accelerating upwards at 3.0 m/s².

What will be the upward force (i.e. the normal force)

from the lift floor on the girl's feet (in N)?

a)

50

b)

150

c)

500

d)

550

41.

Due to an acceleration of 2 m/s²,

the velocity of a body increases from 20 m/s to 30 m/s in a certain period.

Find the displacement of the body in that period.

a)

650m

b)

125m

c)

250m

d)

325m

100 %

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