Brainscape's Knowledge GenomeTM

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


See full index

Science > Forces Test > Flashcards

Forces Test Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
0
Q
  1. What is a force
A

A push or pull exerted on an object in order to change the motion of the object force has size and direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q
  1. What is inertia
A

The tendency of an object to resist being moved or if the object is moving to resist a change in speed or direction until an outside force acts on the object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  1. What SI unit is measured to measure force
A

Newtons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  1. Name the two properties of force
A

Direction and magnitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. How are forces calculated when they are in the same direction
A

They are added together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. How are forces calculated when they are in different direction
A

Subtract the smaller force from the bigger one

12N- 10N= 2N

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

9.What is a balanced force

A

When the object goes at a constant speed or its stopped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. What is tension and compression
A

Tension is a force that is exerted when matter is pulled or stretched. Compression is a force that is exerted when matter is pushed or squeezed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. A force on an object can be balanced even if the object is in motion
A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. What will an unbalanced force cause.
A

Cause a change of velocity in an object

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

13How will an unbalanced force change a moving object

A

It can make the object go faster or slower or change direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. How will an unbalanced force change a static object?
A

It will change by it will make the object start to move or cause a moving object to slow down and stop moving

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. What will an unbalanced force acting in the opposite direction do to something that is moving forward
A

The object will slow down

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

A force that opposes motion between two surfaces that are in contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  1. What causes friction
A

Rough surfaces hills and valleys stick to other hills and valleys

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

18.What are 2 factors that affect the magnitude of frictional force

A

Force pushing surfaces together

Materials that make up the surface

16
Q

19.Why does it take less force to slide a light book across a table than a heavy books

A

Because the heavy book has more weight and is more rough

17
Q
  1. Does the surface area of an object affect the fictional force
A

No

18
Q
  1. Does the friction increase or decrease when the surface of an object slides across become rough
A

Increase

19
Q

22.What is kinetic friction

A

Friction between moving surfaces

20
Q

23.What is static friction

A

Friction between non-moving surfaces

21
Q
  1. Is there any frictional force if there is no force applied to an object
A

No

22
Q
  1. How can static friction be overcome
A

Applying a large amount of force

23
Q
  1. What replaces static friction when an object begins moving
A

Kinetic friction

24
Q
  1. The 3 ways friction can be reduced is….
A

Lubricants, switching from sliding kinetic friction to rolling, and smooth surfaces that rub against each other

25
Q
  1. The 2 ways friction can be increased are
A

Make surfaces rougher and increase the force of pushing objects together

Science (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions