Forces and Speed

Question 1

Which direction do the arrows of force face in comparison to the object?

Answer 1

They face away from the object.

Question 2

What is weight?

Answer 2

Weight is a force.

Question 3

What does weight measure?

Answer 3

It measures the effect gravity is having on an object.

Question 4

What is weight measured in?

Answer 4

weight is measured in newtons.

Question 5

what does mass measure?

Answer 5

mass measures how much of something there is.

Question 6

mass measured in?

Answer 6

mass is measured in kilograms.

Question 7

what is air resistance?

Answer 7

the force of an object moving through air.

Question 8

what does it mean when the driving force arrows on an object are both the same length?

Answer 8

this means that the object is staying still.

Question 9

what is drag force?

Answer 9

drag force is the force acting on an object travelling through water or air, causing it to slow down.

Question 10

what is driving force?

Answer 10

driving force is the force pushing or pulling something

Question 11

what is elastic limit?

Answer 11

the point which a spring will not return to its original state

Question 12

What does equilibrium mean?

Answer 12

balanced

Question 13

What is friction?

Answer 13

The force that resists movment because of the contact with surfaces

Question 14

What is Hooke’s law?

Answer 14

the law that says that if you double the force on an object, the extension will double.

Question 15

what is extension?

Answer 15

the amount an object gets longer when force is applied.

Question 16

what is kilograms?

Answer 16

a unit of mass. Symbol = KG

Question 17

what is newtons?

Answer 17

a unit of force. Symbol = N

Question 18

what is magnetic force?

Answer 18

the force between 2 magnets, or a magnet and magnetic material.

Question 19

What is field in scientific terms?

Answer 19

A region where something feels a force.

Question 20

what is a newton meter?

Answer 20

a piece of equipment used to measure weight in newtons.

Question 21

what is non-contact force?

Answer 21

A magnetic, electrostatic, or gravitational force that acts between objects not in contact.

Question 22

What is pull?

Answer 22

`A type of force

Question 23

What is push?

Answer 23

A type of force?

Question 24

What is reaction?

Answer 24

The support force provided by a solid surface like a floor.

Question 25

what doe streamlined mean?

Answer 25

shaped to reduce resistance to motion from air or water?

Question 26

what is tension?

Answer 26

a stretching force.

Question 27

what does unbalanced mean in relationship to force?

Answer 27

opposing forces on an object that are unequal.

Question 28

what is water resistance?

Answer 28

the force on an object moving through water that causes it to slow down. (also known as drag.)

Question 29

what is weight?

Answer 29

that force of the earth on object due to its mass.

Question 30

how do you calculate speed?

Answer 30

S= D/T

Question 31

how do you calculate time?

Answer 31

T= D/S

Question 32

how do you calculate distance?

Answer 32

D= S x T

Question 33

What is an independent variable?

Answer 33

An aspect of the experiment that you purposely change.

Question 34

What is a dependant variable?

Answer 34

An aspect of the experiment that changes due to the independent variable.

Question 35

What is a control variable?

Answer 35

An aspect of the experiment that you have to keep the same to keep the experiment the same.

Question 36

Steven compares how quickly jelly dissolves at different temperatures. What is the IV, DV and CV?

Answer 36

IV = The temperature of the water.
DV = The time in takes for the jelly to dissolve.
CV = The amount of jelly used
The amount of water used.