Define force. - Anything that causes an object to move or change direction, Define gravity. - the force pulling an object towards the nearest celestial body, Name 3 types of forces. - gravity, friction, electrical ........, What is the unit of force? - Newton, Who was the first person to describe a force? - Isaac Newton, Name the instrument used to measure force? - Newton meter, Explain balanced forces. - where all the forces acting on an object are equal, The force of gravity on a body is called... - Weight, True or false: weight is a force. - True, What is the unit of weight? - Newton, What is the unit of mass? - Kilogram, Define weight. - Mass plus the effect of gravity, What is the formula used to calculate weight? - mass (g) X 10, Explain friction? - force resisting the movement of 2 surfaces in contact, What are the advantages of friction? - brakes, being able to walk, write , What are the disadvantages of friction? - wears out moving parts, Describe air resistance? - Friction caused by an object moving through air, What is a non-contact force - A force where contact is not required eg magnetic force, What are the 4 forces working on an aeroplane? - Lift, drag, thrust and gravity, What is the mass of someone who weighs 500 N on Earth? - 500 /10 = 50kg, What is the weight of someone whose mass is 80 kg? - 80 x 10 = 800 Newtons,
0%
Forces Revision JC
Podeli
Podeli
Podeli
autor
Larissakelly1
Uredi sadržaj
Ugradi
Više
Tabela
Pločice na okretanje
je otvoreni šablon. On ne generiše rezultate za tabelu rangiranja.
Prijava je obavezna
Vizuelni stil
Fontove
Prijava je obavezna
Postavke
Promeni šablon
Prikaži sve
Više formata će se pojaviti tokom igranja aktivnosti.
Otvoreni rezultati
Kopiraj vezu
Izbriši
Vrati automatski sačuvano:
?