Pls Answer correctly i really need it

1. What does simple machines do to our lives? It makes our works
A. difficult
B. easier
C. happier
D. complicated
2. A pair of scissors is an example of what kind of simple machine?
A. lever
B. pulley
C. screw
D. wedge
3. A seesaw is an example of what kind of simple machine?
A. lever
B. pulley
C. screw
D. wedge
4. A ramp is an example of what kind of simple machine?
A. inclined place B. lever
C. pulley
D. Screw
5. A wheelbarrow is an example of a lever. Lever has 3 classes. In what class do
wheelbarrow belongs?
A class 1
B. class 2
C. class 3
D. class 4
6. Pulley has 3 kinds. Which describes a fixed pulley?
A. does not move and gives no gain in force, speed or distance
B. each fixed pulley changes the direction of the force and each movable pulley
changes the amount of force
C. moves along the rope helps gain in force but loses in distance
D. used in scaffolds for painters and for billboard poster men
7. You want to hang your family picture frames on your wall, what simple machine
will you used?
A lever
B. inclined plane C. pulley
D. screw
8. Which of these should be done with a knife in relation to children? The
A. children can be allowed to play with the knife.
B. knife should be place within the reach of children.
C. children may be allowed to use the knife with the supervision of an adult.
D. children may be allowed to use the knife anytime they would want to.
9. Simple machines make our work faster and easier. What safety measures you
will
practice before using them?
A. Check and make sure they are in good conditions.
B. Keep simple machines in drawers and cabinets.
C. When holding sharp and pointed simple machines you can just hold them the
way you like it.
D. When using your bike and skateboards use them, without checking if they are
in good condition.
10. Will it be possible for a girl in a seesaw to balance herself with her father who
weighs twice as much as her? Why?
A. Yes. She'll have to sit nearer the fulcrum than her father.
B. Yes. Her father will have to sit nearer the fulcrum than her.
C. No. She needs to be as heavy as her father.
D No. She needs to be heavier than her father.​