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Resultant Forces

Total questions: 50

Worksheet time: 26mins

Name
Class
Date
1.
What is the force that pulls us towards the Earth?
a)
gravity
b)
weight
c)
friction
d)
mass
2.
What is 'drag' another name for?
a)
dressing up
b)
air resistance
c)
friction
d)
weight
3.
Name two quantities that are vectors.
a)
force and speed
b)
speed and acceleration
c)
force and acceleration
d)
mass and weight
4.
What are balanced forces?
a)
forces of the same size, in opposite directions
b)
the same size in the same direction
c)
forces in opposite directions
d)
forces at right angles to each other
5.
What is the name for a single force on an object with the same effect as all the forces combined?
a)
big
b)
total
c)
resultant
d)
sum
6.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
7.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
8.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
9.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
10.
Two features of a vector?
a)
Size and direction
b)
Speed and distance
c)
Quantity and units
d)
Amount and magnitude
11.

The unit of force is...

a)

m/s

b)

m

c)

N

d)

kg

12.

What is the resultant force?

a)

40 N, Left

b)

0 N, Balanced

c)

400 N, Right

d)

40 N, Right

13.

What is the resultant force?

a)

400 N, Up

b)

400 N, Down

c)

800 N, Up

d)

800 N, Down

14.

What is the resultant force?

a)

17 N, Left

b)

6N, Right

c)

11N , Left

d)

12N, Left

15.

What is the resultant force?

a)

40N, Left

b)

40N, Right

c)

0N, Balanced

d)

75N, Right

16.

What is the resultant force?

a)

40 N left

b)

0 N Balalnced

c)

400 N right

d)

40 N right

17.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
18.

What is the resultant/ net force?

a)

30 N left

b)

25 N right

c)

5 N left

d)

55 N right

19.

Which could be an example of an unbalanced force?

a)

A plate sitting on a dining table

b)

A ball at the top of a hill that is not moving

c)

Earth orbiting the Sun

d)

A football that has been thrown to the goal post.

20.

What is the resultant/ net force?

a)

400 N Up

b)

400 N Down

c)

- 400 N Down

d)

800 N Down

21.

A balanced force is only an object that is not moving.

a)

True

b)

False

22.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
23.
Are forces balanced or unbalanced when a marble rolls down a ramp?
a)
Balanced
b)
Unbalanced
24.
Are forces balanced or unbalanced when skateboarding down a ramp?
a)
Balanced
b)
Unbalanced
25.

All stationary (Still) objects have __________ forces on them.

a)

unbalanced

b)

balanced

c)

high

26.

If forces on an object are unbalanced, it will _______

a)

make the object to move or change direction.

b)

make it move at same speed.

c)

it will remain still.

27.

Forces acting on an object are said to be balanced, when

a)

the forces are equal in size and are acting in opposite direction.

b)

the forces are equal in size and are acting in same direction.

c)

the forces are different in size and are acting in opposite direction.

28.

The head of an arrow represent the __________ of force.

a)

strength

b)

length

c)

direction

29.

The sum of all forces acting on an object is called

a)

unbalanced force.

b)

balanced force.

c)

resultant force.

30.

What is the net force shown in the diagram?

a)

50 N right

b)

950 N

c)

50 N left

d)

500 N left

31.

The resultant force is the . . .

a)

force that acts in the opposite direction to motion.

b)

overall force acting on an object.

c)

unit for measuring force.

32.

How do you calculate the resultant force when the forces on an object are acting in the same direction?

a)

Add the forces together.

b)

Subtract the smaller force from the larger force.

33.

How do you calculate the resultant force when the forces on an object are acting in opposite directions.

a)

Add the forces together.

b)

Subtract the smaller force from the larger force.

34.

Calculate the resultant force acting on the truck.

a)

15 N to the right

b)

15 N to the left

c)

35 N to the right

d)

35 N to the left

35.

Calculate the resultant force acting on the ball.

a)

10 N to the left

b)

10 N to the right

c)

0 N

d)

5 N to the right

36.

Calculate the resultant force acting on the paper aeroplane.

a)

2 N to the left

b)

2 N to the right

c)

6 N to the right

d)

6 N to the left

37.

Calculate the resultant force acting on the block.

a)

21 N to the left

b)

21 N to the right

c)

1 N to the left

d)

1 N to the right

38.

Calculate the resultant force acting on the parachute.

a)

19 N upwards

b)

19 N downwards

c)

5 N upwards

d)

5 N downwards

39.

Calculate the resultant force acting on the boat.

a)

200 N to the left

b)

200 N to the right

c)

400 N to the right

d)

400 N to the left

40.

Calculate the resultant force acting on the car.

a)

105 N to the right

b)

105 N to the left

c)

35 N to the left

d)

35 N to the right

41.

Calculate the resultant force acting on the kite.

a)

40 N upwards

b)

40 N downwards

c)

64 N downwards

d)

64 N upwards

42.

Calculate the resultant force acting

on the parachute.

a)

85 N upwards

b)

85 N downwards

c)

215 N upwards

d)

215 N downwards

43.

Calculate the resultant force acting on the car.

a)

82 N to the right

b)

82 N to the left

c)

226 N to the left

d)

226 N to the right

44.

Calculate the resultant force acting on the fish.

a)

7 N to the left

b)

7 N to the right

c)

47 N to the left

d)

47 N to the right

45.

The resultant force acting on the aeroplane is ...

a)

484 N towards the left

b)

484 N towards the right

c)

664 N towards the right

d)

664 N towards the left

46.

The resultant force acting on the ball is ...

a)

6 N upwards.

b)

6 N downwards.

c)

30 N downwards.

d)

30 N upwards.

47.

The resultant force acting on the balloon is ...

a)

8 N towards the right.

b)

18 N towards the right.

c)

18 N towards the left.

d)

8 N towards the left.

48.

Calculate the resultant force

a)

90N to the right

b)

30N to the left

c)

60N to the left

d)

90N to the left

49.

Calculate the resultant force

a)

20N to the right

b)

40N

c)

30N to the left

d)

20N to the left

50.

What is the unit of force?

a)

Newton (N)

b)

Watt (W)

c)

Joule (J)

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