Forces

Question 1

What do vectors have

Answer 1

Magnitude and direction

Question 2

What quantity is force

Answer 2

Vector

Question 3

Examples of vector quantities

Answer 3

Force, velocity, displacement, acceleration, momentum

Question 4

Scalar quantities

Answer 4

Speed, distance, mass, temperature, time

Question 5

Contact force examples

Answer 5

Friction, air resistance, tension in ropes, normal contact force

Question 6

Non contact force examples

Answer 6

Magnetic force, gravational force, electrostatic force

Question 7

What are mass and weight

Answer 7

Directional proportional

Question 8

Weight equation

Answer 8

Weight(N)=mass(kg) x gravtional field strength (N/kg)

Gravitational field strength=9.8

Question 9

What happens when a resultant force moves an object

Answer 9

Energy is transferred and work is done on the object

Question 10

Work done equation

Answer 10

Work Done(J)=force(N) x distance(M)

Question 11

Force equation

Answer 11

Force(N)=spring constant(N/M) x extension(M)

Question 12

Elastic potential energy equation

Answer 12

Ee= 1/2 x K(spring constant)(N/M) x extension(M)

Question 13

Moment of a force equation

Answer 13

M= F(force) x distance(M)

Question 14

What is acceleration proportional to

Answer 14

Result force

Question 15

Resultant force equation (x)

Answer 15

F= m(mass)(kg) x a(acceleration)(m/s)

Question 16

Newton’s first law

Answer 16

If the resultant force on a stationery force is zero, the object will remain stationery. If the resultant force on a moving object is zero. It’ll just carry on moving at the same velocity(same speed and direction)

Question 17

Newton second law

Answer 17

Acceleration is proportional to the resultant force

Question 18

Acceleration(m/s) equation

Answer 18

Acceleration= change in velocity(M/s) / time(s)

Question 19

Regd

Answer 19

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