Chapter 2 Force and Motion 1

Question 1

What is motion in a straight line called?

Answer 1

Linear motion

Question 2

What is linear motion described in terms of?

Answer 2

Distance, displacement, speed, velocity and acceleration

Question 3

What is free fall?

Answer 3

Motion of the object is affected only by gravitational force and does not experience the action of other forces

Question 4

What is the gravitational acceleration of earth

Answer 4

9.81 ms-2

Question 5

What is newtons first law of motion?

Answer 5

It states that an object will remain at rest or move at uniform velocity unless acted upon by an external force

Question 6

What is newtons second law of motion

Answer 6

It states that the rate of change of momentum is directly proportional to the force that acts in the direction of the applied force

Question 7

What is impulse

Answer 7

Change of momentum

Question 8

What is impulsive force?

Answer 8

Rate of change of momentum

Question 9

What is newtons third law of motion

Answer 9

It states that for every action there is a reaction of equal magnitude, but in the opposite direction