Forces

Question 1

Forces

Answer 1

A push, pull or twist

Question 2

Gravity

Answer 2

Keeps something down with force

Question 3

Contact force

Answer 3

A force between tow objects that’s touch each other

Question 4

Non contact force

Answer 4

A force of two objects that don’t touch

Question 5

Magnetic forces

Answer 5

The force between magnets

Question 6

Electrostatic force

Answer 6

An attraction or repulsion based on their electrical charges

Question 7

Permanent magnets

Answer 7

Magnets that never loose their attraction

Question 8

Temporary magnets

Answer 8

Magnets that only have their attraction while connected to another

Question 9

Magnetic field

Answer 9

The force around a magnets that attracts other magnets

Question 10

Atoms

Answer 10

a very small particle that makes up all things. Atoms have the same properties as the objects they make up

Question 11

Negatively charged

Answer 11

the charge on an atom or object with more electrons than protons

Question 12

Positively charged

Answer 12

the charge on an atom or object with fewer electrons than protons

Question 13

Protons

Answer 13

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

Question 14

Neutrons

Answer 14

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

Question 15

Electrons

Answer 15

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

Question 16

Insulators

Answer 16

materials that do not allow electric charge to flow through them

Question 17

Conductors

Answer 17

materials that do not allow electric charge to flow through them

Question 18

Mass

Answer 18

a measure of the amount of material in an object of substance

Question 19

Weight

Answer 19

a measure of the size of the gravity force pulling an object towards the centre of a massive body, such as the Earth. The weight of an object depends on the object’s mass

Question 20

Terminal speed

Answer 20

the constant speed reached by a falling body. A body reaches terminal speed when the force of gravity pulling it down is balanced by the air resistance pushing against it

Question 21

Air resistance

Answer 21

the force of air pushing on an object as the object moves through the air

Question 22

Newton

Answer 22

the unit for measuring forces

Question 23

Friction

Answer 23

a force that acts against the movement of an object. It occurs between any surfaces that are touching and trying to move past each other

Question 24

Lubricant

Answer 24

substance with large particles that can slide easily over each other. Lubricants are used between surfaces that rub against each other to reduce wear and increase motion between the surfaces

Question 25

Traction

Answer 25

a type of friction used to assist movement