1. How much is the pull of gravity on an object that weighs 12 kg? 

•equal to 12kg
•higher by 12 kg
•lower than 12 kg
•higher than 12 kg

2. The statements describe the harmful effects of friction, Except *

•Friction wears away things like shoes, tires and clothes.

•You develop bruise whenever your skin hits a rough surface.

•Friction makes work harder like moving a heavy appliance to another place.

•Friction helps you unscrew the tops or lids of bottles.

(please pa help po : ( )​