science 6

Question 1

force

Answer 1

a push or pull

Question 2

net force

Answer 2

when two or more forces act on an object at the same time

Question 3

balanced force

Answer 3

forces on an object that are equal in size and opposite in direction

Question 4

inertia

Answer 4

an object to resist ant change in motion

Question 5

Newtons first law

Answer 5

an object moving at a constant velocity keeps moving at that velocity unless an unbalanced net force

Question 6

Newtons second law of motion

Answer 6

the acceleration of an object is in the same direction as the net force on the object

Question 7

friction

Answer 7

the force that opposes the sliding motion

Question 8

static friction

Answer 8

frictional force that prevents two surfaces from sliding past each other

Question 9

sliding friction

Answer 9

is the force that opposes motion

Question 10

air resistance

Answer 10

opposes the motion of objects that move through the air

Question 11

terminal velocity

Answer 11

downward force of gravity

Question 12

gravity

Answer 12

is an attractive force between any two objects

Question 13

weight

Answer 13

force exerted on an object

Question 14

Newtons third law of motion

Answer 14

all actions have a reaction

Question 15

momentum

Answer 15

an object is the product of its mass