WorksheetsCitipointe, Yr 4, Science U2 - Force & Motion
Total questions: 26
Worksheet time: 19mins
A type of friction that happens when air pushes against a moving object, causing it to slow down.
surface area
air resistance
velocity
gravity
Which of the following is an example of friction that is harmful?
Pencil marking on paper
Using an eraser to erase marks
sand placed on ice in the winter
Engine parts wearing out
This car is turning, but there’s a puddle of water in the road. Which diagram best shows how the puddle will affect the path of the car after it hits the puddle?
Rougher surfaces have ...
more friction
less friction
the same level of friction
What pulls a ball back to earth?
Gas
Molecules
Friction
Gravity
When you push SOFTLY an object moves....
Slow
Fast
When you push HARD the objects move...
slow
fast
On which surface will a toy car travel the furthest?
Carpet
Sand Paper
Ice
Paper
Which of these are fair tests?
Some people released the toy car and some pushed the toy car down the ramp
The same person released the toy car down the ramp each time
The ramp was at different heights each time the toy car was released.
There were different objects placed on the test track before releasing the toy car
If two bottles are dropped from a window, one full and one half empty
They should both hit the ground at the same time
They might not hit the ground at the same time because of wind resistance
They would both float away
Dropping bottles out of windows can be dangerous
If I drop two pieces of paper (one scrunched up, one flat)
They will both hit the ground at the same time
Paper floats
The ball of paper will hit first
The flat paper will hit first
Is this safe?
Heavy objects were dropped from a high place
Children leaned over the high balcony to drop items
Students cleared the area below before dropping objects
Teachers made students drop items from a low height
Is this a fair test?
Items were dropped from different heights
Items were dropped from the same height
It was a windy day when the items were dropped
Heavier objects reach the ground first
False
True
The more friction there is, the _________ the car goes.
slower
faster
