1. [ Junior school science (physics) ]
The size of the gravitational force depends on the ___________ of the objects and the ____________________ the objects. 2. [ Junior school science (physics) ]
When we measured force in our labs we used a piece of lab equipment called a _______ 3. [ Junior school science (physics) ]
This type of force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to a surface. 4. [ Junior school science (physics) ]
___ is the speed of an object and the direction of motion.
5. [ Junior school science (physics) ]
According to Newton's third law, forces always occur in ____ pairs.
6. [ Junior school science (physics) ]
If I pushed a rock with a force of 2 Newtons AND
you pushed the rock from the same side as me with a force of 3 Newtons
The total force pushing on the rock is 7. [ Junior school science (physics) ]
Scientists express force by using a unit called the:
8. [ Junior school science (physics) ]
All of these are examples of contact forces EXCEPT: 9. [ Junior school science (physics) ]
The amount of force needed to lift an object depends on the object's 10. [ Junior school science (physics) ]
Jack has a weight of 300 N and sits 2.0 m from the pivot of the see-saw. Jill has a weight of 450 N and sits 1.5 m from the pivot. Who will move down? 11. [ Junior school science (physics) ]
The turning effect of a force on a door is greater when it is applied at 12. [ Junior school science (physics) ]
What are the two types of kinetic friction? 13. [ Junior school science (physics) ]
It would probably be easiest to ride a bicycle across: 14. [ Junior school science (physics) ]
An object that experiences a push or a pull has a(n) __________ exerted on it.
15. [ Junior school science (physics) ]
18. [ Junior school science (physics) ]
Weight is the force of ____________ on an object at the surface of a planet (like Earth).
19. [ Junior school science (physics) ]
A tension force is is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends 20. [ Junior school science (physics) ]
Newton's _____ law of motion explains why you may lean sideways in a car if the driver turns a corner too quickly.
