Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PHYSICS-middle school > FORCE > Flashcards

FORCE Flashcards

1
Q

What is force?

A

The push or pull of an object is called force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Depending on the application forces can be classified as?

A
  1. Contact forces

2. Non contact forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are contact forces?

A

Forces which act on bodies by making actual contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give examples of contact force

A

Muscular force
Force of friction
Force of tension
Force of reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Give examples of non contact force?

A

Gravitational force
Magnetic force
Electrostatic force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is electrostatic force?

A

The force between two magnetic poles at a distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Is the gravitational force always attractive?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Is the magnetic force always attractive?

A

Magnetic force can be attractive or repulsive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Is the electrostatic force always attractive?

A

NO. ELECTROSTATIC FORCE CAN BE ATTRACTIVE OR REPULSIVE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Can a force change the mass of a body on which it is applied?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Can we see force?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Can we feel force?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the two important components of force?

A

Magnitude

Direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The S I unit of force is?

A

newton(N)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When two forces are acting on a body in the same direction, the forces get _____________ to give a _______________.

A

Added

Resultant force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is friction?

A

Friction is a force that opposes the relative motion between two surfaces in contact with each other

17
Q

How is the word friction derived?

A

From the Latin word “fricare” which means to rub

18
Q

What are the effects of friction?

A
  1. Friction opposes motion
  2. Friction acts in the direction opposite to that of motion
  3. friction produces heat
  4. friction causes wear and tear
19
Q

How does friction arise?

A

because of the irregular projection between the two surfaces in contact

20
Q

Which are the three factors that affect friction ?

A

Smoothness of the surface
The nature of the medium in which the body moves

Weight of the moving body on the surface

PHYSICS-middle school (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions