In which diagram the object move to the right?
D and A
What is the resultant force of team B?
1,800 N
If there are 2 cows used in pulling a cart with 40 N and 60 N, how much will be the resultant force?
100 N
What changes takes place in A and B?
A is vaporization
B is condensation
What is dissolution?
It looks uniform and no more solids inside.
In which diagram the object not move?
B
Which floor gives the lowest friction?
D
Cutting paper into small pieces is an example of what kind of change.
physical change
physical change
Which of the following is soluble in water?
a. oil b. sand
c. salt d. flour
salt
In which diagram the object move to the left?
C
Arrange from lowest to highest friction?
D-B-C-A
Burning a paper and producing an ash is an example of what kind of change?
Chemical change
Which is correct about making ice?
a. solid changes to gas
b. liquid changes to gas
c. gas changes to liquid
d. liquid changes to solid
liquid to solid- solidification
A process by which the water falls to the ground.
precipitation
A tow truck exerted 1,000 N to drag a car. A force of 100 N was also exerted to push the car before it started moving. What is the resultant force then?
1100 N
Which device to use in measuring newton?
Spring scale
What do you call a process by which an iodine which is solid turned directly to gas.
sublimation
Which is a physical change?
a. making ice b. cooking curry
c. burning wood d. boiling eggs
making ice
A process by which the water runs down the hill and go back to water sources.
collection
Team A played tug-of-war with Team B. Each team had 3 players. Each player in Team A exerted 500 N. How much force should each player of Team B exert so they can win?
600 N
If the resultant force is zero, what will happen to the object?
not move
A hot air balloon has 8 strings joining the balloon and the basket. Each strings exerts 300 N to hold up the basket. If only 4 strings are used for the same hot air balloon, how much force will each string need to exert?
600 N
Dissolution took place in what glass?
a. Glass A b. Glass B
c. Glass C d. none of the above
Glass B
A process by which the Sun’s heat turns water into gas called water vapour.
evaporation