Unit 1 Part 1 Question Preview (ID: 43869)


Force And Motion. TEACHERS: click here for quick copy question ID numbers.

Why do you wear seat belts in cars and on rides at the fair?
a) gravity
b) friction
c) ineritia
d) electricity

The space shuttle heats up entering Earth, why?
a) gravity
b) ineritia
c) friction
d) speed

what two factors affect gravity?
a) mass and speed
b) weight and distance
c) mass and distance
d) weight and speed

If you throw a ball against a wall why does it bounce back?
a) Newton's first law
b) Newton's 2nd law
c) Newton's 3rd law
d) gravity

You fix a bowl of soup, you want to eat and watch TV. When you walk the soup spills out of the bowl. Why did this happen?
a) gravity
b) density of the soup
c) speed of you walking
d) ineritia

The reason you feel pushed back in your seat going up a roller coaster is because of
a) gravity
b) ineritia
c) friction
d) vectors

Newton's first law of inertia example would be
a) ball returns to Earth when thrown up in the air
b) ball rolls faster down a hill
c) ball sits still on the ground
d) ball slows down in the grass

If Sally pushes 10N left and Johnny pushes 50N right what is the net force?
a) 40N left
b) 40N right
c) 60N left
d) 60N right

If two people pull on a box, how do you calculate net force?
a) subtract
b) add
c) multiply
d) divide

To move an object you must
a) overcome gravity
b) balanced force acting on the object
c) unbalanced force smaller than friction
d) unbalanced force greater than friction

Which example best represent an object with a balanced force acting upon it?
a) a boat moving
b) book sitting on a shelf
c) wagon rolling by itself down a hill
d) baseball thrown in the air

Which is an example of how can a unbalanced force change speed of an object?
a) child walking around a corner
b) child signing a song
c) child sitting in a chair
d) child braking on a bike

When a moving object is acted on by unbalanced forces, the object will
a) stop moving
b) move unpredictably
c) move same direction as the stronger force
d) move opposite direction as the stronger force

if the net force is zero
a) not even
b) unequal
c) blanced
d) unbalanced

Two opposite forces acting on a rope. What can we say is true if the forces on each side of the rope are doubled to 150 Newtons?
a) cannot be determined
b) forces are not balanced
c) forces balanced but forces increased and ropes motion is affected
d) forces balanced but no change in ropes motion is not affected

If Shane and Susan both push on a box with a force of 25N, but in opposite directions, what will happen to the box?
a) box will not move
b) box will move toward susan
c) box will move toward shane
d) the box will move up

wo forces are acting on a wheelbarrow. One force is pushing to the right and an equal force is pushing to the left. What can you say about the wheelbarrow's movement?
a) slows down
b) move faster and faster
c) balanced
d) speed is changing at a constant rate

Yoyo -57 grams Football - 400 grams Baseball - 145 grams Basketball - 6237 grams If you had to throw one of the four toys listed, which one would take the MOST force to throw?
a) yoyo
b) basketball
c) baseball
d) football

Mutt and Jeff are running along a path each pushing a cart loaded with rocks. If Mutt's wagon has a mass two times greater than Jeff's and they want to arrive at their destination at the same time, what must happen?
a) Jeff is weak
b) Mutt must double his force
c) Mutt must half his force
d) Mutt and Jeff will be equal but, Mutt takes larger steps

1) Imagine you are on the top of a mountain with four basketballs. The mass of the four basketballs are 100 kilograms, 200 kilograms, 300 kilograms, and 400 kilograms. If the basketballs rolled down the hill, which one would supply the greatest force
a) 100kg
b) 200kg
c) 300kg
d) 400kg

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