Cycle 1 - Test 1 - PS

Question 1

Resultant Vector

Answer 1

Single vector which has same effect as original vectors acting together

Question 2

Normal force

Answer 2

Perpendicular force exerted by a surface on an object in contact with it

Question 3

Weight

Answer 3

gravitational force the Earth exerts on any object on or near its surface.

Question 4

Frictional Force

Answer 4

force that opposes the motion of an object.

Question 5

Newtons 1st Law

Answer 5

An object continues in a state of rest unless its acted upon by a resultant force

Question 6

Inertia

Answer 6

Property of an object that causes it to resist change in its state of uniform motion

Question 7

Newtons 2nd Law

Answer 7

Acceleration is directly proportional to net force acting upon object and inversely proportional to the mass of the object

Question 8

Apparent Weight

Answer 8

What the weight seems to be when object accelerates in a vertical direction

Question 9

Newtons 3rd Law

Answer 9

When object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A.

Question 10

Gravitational Field

Answer 10

the force acting per unit mass.

Question 11

Newton’s Law of Universal Gravitation

Answer 11

Every particle with mass attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their center’s.

Question 12

The Mole

Answer 12

the SI unit for the amount of a substance (mol)