Science Chapter 8: Forces Deck of Cards

Question 1

Permanent Magnets

Answer 1

Magnets that maintain their magnetism after being removed from another magnet

Question 2

Temporary Magnets

Answer 2

Magnets that lose their magnetism after being removed from another magnet

Question 3

Magnetic Field

Answer 3

A region around a magnetic material or a moving electric charge

Question 4

Repulsion

Answer 4

A force were the objects tend to pull away or move away from each other

Question 5

Atoms

Answer 5

They are tiny particles that make up our world. It is made up of electrons, protons and neutrons. Protons and neutrons are heavier that electrons so they are inside the centre of the atom, the nucleus

Question 6

Nucleus

Answer 6

Roundish structure inside cells that act as the control centre for the cell. Plural=nuclei

Question 7

Electrons

Answer 7

Very light, negatively charged inside an atom. Electrons move around the central nucleus of an atom

Question 8

Negative Electric Charge

Answer 8

The charge on an atom or object with more electrons than protons.

Question 9

Protons

Answer 9

Tiny, but heavy, particle found in the nucleus of an atom. Protons have a positive electrical charge.

Question 10

Positive Electric Charge

Answer 10

The charge on an atom or object with fewer electrons than protons.

Question 11

Neutrons

Answer 11

Tiny, but heavy, particles found in the nucleus of an atom. Neutrons have no electrical charge.

Question 12

Positively Charged

Answer 12

Any particle or substance that has more protons than electrons.

Question 13

Negatively Charged

Answer 13

Any particle or substance that has more electrons than protons.

Question 14

Neutral

Answer 14

A particle or substance that has equal amounts of positive and negative charge.

Question 15

Static Electricity

Answer 15

A build up of charge in one place.

Question 16

Insulators

Answer 16

Material that does not allow electric charge to flow through them.

Question 17

Conductors

Answer 17

Material that will allow electric charge to flow through them.

Question 18

Lighting rods

Answer 18

A conductive metal rod, often put on top of tall buildings, lighting rods help keep buildings safe from electric strikes.

Question 19

Terminal Speed

Answer 19

When air resistance and gravity become balanced out and when speed can’t go any faster.

Question 20

Newton

Answer 20

The measurement for weight.

Question 21

Mass

Answer 21

A measurement of the amount of material in an object of an substance

Question 22

Weight

Answer 22

A measurement of a force of gravity pulling it down towards the centre of a large object such as a planet, moon or star etc.

Question 23

Air Resistance

Answer 23

When the atmosphere pushes against all falling objects

Question 24

Gravity

Answer 24

A force that attracts an object into the centre of an other object having mass such as planet, moon or star etc

Question 25

Friction

Answer 25

A force applied to the surface of an object when it moves against the surface of another object

Question 26

Lubricants

Answer 26

These things reduce the force of friction produced by the rubbing of solid surfaces.

Question 27

Traction

Answer 27

This is a type of friction used to assist with movement.

Question 28

Buoyancy

Answer 28

A upward push on an object that is floating on top of or submerged in fluid.

Question 29

Surface Tension

Answer 29

The pulling of particles in a liquid towards each other. Soaps and detergents reduce the surface tension of water.