Science Quiz friction

Question 0

Strength of Friction depends on

Answer 0

• How hard the surfaces push together

* the types of surface involved

Question 1

Friction

Answer 1

• a force that resist motion
• occurs when two objects are pushed or pulled against each other
• acts in the direction that is opposite motion

Question 2

Types of friction

Answer 2

• Static
• sliding
• rolling
• fluid

Question 3

Static friction

Answer 3

Acts on objects that are not moving

Question 4

Sliding

Answer 4

Occurs when two solid surfaces slide over each other

Question 5

Rolling

Answer 5

Occurs when an object rolls across a surface

Question 6

Fluid

Answer 6

Occurs when a solid object moves through fluid

Question 7

Force

Answer 7

A push or pull

Question 8

Force described by

Answer 8

Strength and direction

Question 9

Force measurement

Answer 9

Newtons (N)

Question 10

Inertia

Answer 10

Resistance to change in motion

Question 11

Law of Inertia

Answer 11

An object at rest will stay at rest and an object in motion will stay in motion until acted upon by an outside force

Question 12

Net force

Answer 12

Combination of all forces acting on an object. Determines whether an object moved and in which direction

Question 13

Unbalanced force

Answer 13

There is a change in the objects motion

Question 14

Balanced force

Answer 14

Causes zero net force. Forces balance each other out

Question 15

Gravity

Answer 15

A force that pulls objects together

Question 16

Factors that affect gravity

Answer 16

Mass and distance
More mass=more gravity
More distance=less gravity

Question 17

Free fall

Answer 17

Only force acting on a falling object is gravity

Question 18

Air resistance

Answer 18

A force that works against gravity

Question 19

Terminal velocity

Answer 19

The greatest velocity an object reaches.

More mass=longer time to reach terminal velocity