Friction is a force that acts in an ___________ direction of movement.
opposite
Oops!
Check
Okay!
Check
15
Mention two disadvantages of friction.
Friction causes wear and tear. Friction produces heat that can damage machine.
Oops!
Check
Okay!
Check
15
What is the instrument / tool used to measure force?
Forcemeter
Oops!
Check
Okay!
Check
monster
Reset all scores!
Oops!
gift
Win 20 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
Oops!
15
Which type of force shown in the picture?
A pull
Oops!
Check
Okay!
Check
15
True or False: Heavier objects require more force to move and stop.
True
Oops!
Check
Okay!
Check
15
Who will go faster? A or B?
A. Because it has less friction.
Oops!
Check
Okay!
Check
15
Andy is kicking a moving soccer ball. What is the effect of forces on the ball?
Forces can change the direction of the ball
Oops!
Check
Okay!
Check
15
Which type of force shown in the picture?
A push
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
seesaw
Swap points!
Okay!
gift
Win 20 points!
Okay!
baam
Lose 15 points!
Oops!
15
Mention 2 advantages of friction.
Any 2: allows objects to remain still, allows us to grip things and walk, prevents slipping, allows moving objects to stop, produces heat to start a fire.
Oops!
Check
Okay!
Check
15
What is a force?
A push or pull applied to an object.
Oops!
Check
Okay!
Check
15
What is the unit measurement of forces?
newton (N)
Oops!
Check
Okay!
Check
15
Which ball has more friction? The top ball or the bottom ball?
