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7Ka-b Forces and Springs

Total questions: 27

Worksheet time: 34mins

Name
Class
Date
1.

A force can change the shape of something.

a)

True

b)

False

2.

Is spring a force?

a)

Yes

b)

No

3.

A spring reaches its 'elastic limit' when a spring is compressed lightly.

a)

True

b)

False

4.

Are springs elastic?

a)

Yes

b)

No

5.

A forcemeter has a spring inside it.

a)

True

b)

False

6.

We measure force in

a)

newons

b)

netons

c)

newrons

d)

newtons

7.

An elastic band is similar to a spring.

a)

True

b)

False

8.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

9.

Who wins the tug of war with what net force?

a)

The person on the left with 20 N

b)

The person on the left with 10 N

c)

The people on the right with 20 N

d)

The people on the right with 10 N

10.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
11.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

12.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

13.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
14.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
15.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
16.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
17.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
18.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
19.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
20.

A force can cause an object to

a)

accelerate

b)

slow down

c)

remain in place

d)

all of the above

21.

________________is not a force

a)

Friction

b)

Gravity

c)

Mass

d)

Pushing and Pulling

22.
A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
a)
surface area
b)
air resistance
c)
descent velocity
d)
gravity 
23.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
24.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
25.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
26.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
27.
the tendency of an object to resist a change in its motion
a)
acceleration
b)
inertia
c)
mass
d)
frame of reference

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