Balanced and Unbalanced forces | 1.4K plays

1.

Multiple Choice

1 min

1 pt

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

Balanced Forces, Constant Speed

Balanced Forces, Acceleration

Unbalanced Forces, Constant Speed

Unbalanced Forces, Acceleration

2.

Multiple Choice

20 sec

1 pt

How will this object move?

It won't move.

It will move to the right.

It will move to the left.

It will move up.

3.

Multiple Choice

1 min

1 pt

How will this object move?

It won't move.

It will move to the right.

It will move to the left.

It will move in both directions.

4.

Multiple Choice

1 min

1 pt

What is the net force?

30 N left

25 N right

5 N left

55 N right

5.

Multiple Choice

20 sec

1 pt

What is the net force?

40 N left

0 N Balalnced

400 N right

40 N right

6.

Multiple Choice

1 min

1 pt

Which could be an example of a balanced force?

An asteroid moving at a constant speed through space

A car accelerating from a stop sign

A box of dishes falling from a counter

A rocket taking off

7.

Multiple Choice

1 min

1 pt

Which could be an example of an unbalanced force?

A plate sitting on a dining table

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

Earth orbiting the Sun

A baseball that has been thrown to home plate.

8.

Multiple Choice

45 sec

1 pt

Calculate the Net Force.

60N, Left

40N, Right

0N

60N, Right

9.

Multiple Choice

1 min

1 pt

Calculate the Net Force.

40N, Left

40N, Right

0N, Balanced

75N, Right

10.

Multiple Choice

20 sec

1 pt

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

60 N right

10 N left

60 n right

50 N left

11.

Multiple Choice

1 min

1 pt

What is the net force?

10 N

0 N

25 N

1 N

12.

Multiple Choice

30 sec

1 pt

Forces that have a net force of zero ( the object is still).

Balanced force

Unbalanced force

13.

Multiple Choice

30 sec

1 pt

What is the net force?

5000 N right

4000 N right

40 N left

4000 N left

14.

Multiple Choice

30 sec

1 pt

A force acting in the opposite direction of an object in motion

Gravity

Buoyant

Friction

Normal

15.

Multiple Choice

30 sec

1 pt

The sum of all forces acting on an object and direction

Contact Force

Balanced Force

Unbalanced Force

Net Force

16.

Multiple Choice

30 sec

1 pt

What is the net force in this diagram?

8N right

2 N right

8N left

2N left

17.

Multiple Choice

30 sec

1 pt

What is the net force of an object that is not moving?

0N

100N

Upward force

18.

Multiple Choice

30 sec

1 pt

Why does a book on a table not move?

No forces are acting on the book

Gravity is the only force acting on the book

Forces of the table pushing up and gravity pulling down are balanced

19.

Multiple Choice

30 sec

1 pt

What is the unit of force?

Kilogram

Meter

Pascal

Newton

20.

Multiple Choice

30 sec

1 pt

What is the net force?

400 N Up

400 N Down

- 400 N Down

800 N Down

21.

Multiple Choice

30 sec

1 pt

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

chemical

force

magnet

gravity

22.

Multiple Choice

30 sec

1 pt

Forces can change the ________ of a moving object.

direction

push

pull

friction

23.

Multiple Choice

30 sec

1 pt

The plate shown suddenly move. Describe the forces and resulting motion.

Balanced Forces, Constant Speed

Balanced Forces, Acceleration

Unbalanced Forces, Constant Speed

Unbalanced Forces, Acceleration

24.

Multiple Choice

1 min

1 pt

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?

50N to the left.

350N to the left.

350N to the right.

50N to the right.

25.

Multiple Choice

20 sec

1 pt

If these boys are pulling with the same amount of force. What will happen?

The boy in blue will win.

They will not move at all.

The boy in red will win.

Both will fall down.

26.

Multiple Choice

30 sec

1 pt

Which could be an example of an unbalanced force?

A plate sitting on a dining table

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

Earth orbiting the Sun

A baseball that has been thrown to home plate.

27.

Multiple Choice

30 sec

1 pt

Which could be an example of a balanced force?

An asteroid moving at a constant speed through space

A car accelerating from a stop sign

A box of dishes falling from a counter

A rocket taking off

28.

Multiple Choice

10 sec

1 pt

Balanced or Unbalanced?

Balanced

Unbalanced

29.

Multiple Choice

30 sec

1 pt

Calculate the Net Force.

40N, Left

40N, Right

0N, Balanced

75N, Right

30.

Multiple Choice

2 mins

1 pt

Acceleration of an object happens when things ________

slow down

go faster

change direction (turn)

All of the above

31.

Multiple Choice

15 mins

1 pt

Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.

198 m/sec

170 m/sec

12 m/sec

18 m/sec

32.

Multiple Choice

2 mins

1 pt

What is the formula to calculate speed?

S = t/d

S = d/t

S = d x t

S = t x d

33.

Multiple Choice

2 mins

1 pt

What is velocity?

the quickness of an object

the location of an object

acceleration

speed in a specific direction

34.

Multiple Choice

3 mins

1 pt

Find speed when distance is 142 km and time is 2 hours.

71km/hr

52km/hr

17km/hr

90km/hr

35.

Multiple Choice

3 mins

1 pt

Alan travels 100km in 5hrs. Find his average speed in km/h

5km/hr

10km/hr

50km/hr

20km/hr

36.

Multiple Choice

1 min

1 pt

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

10 m/s

1000 m/s

100 seconds

10 seconds

37.

Multiple Choice

1 min

1 pt

What is the formula to calculate speed?

Speed = time/distance

Speed = distance/time

Speed = distance x time

Speed = time x distance

38.

Multiple Choice

1 min

1 pt

Acceleration is defined as the CHANGE in

time of motion to another place.

velocity

distance

speed

39.

Multiple Choice

1 min

1 pt

Acceleration only takes place when things speed up.

True

False

40.

Multiple Choice

1 min

1 pt

Changes in our speed, direction or both are called _________.

gravity

changes

acceleration

deceleration

41.

Multiple Choice

30 sec

1 pt

According to the graph how far does the person travel in the first 5 seconds?

2 m

10 m

0 m

5 m

42.

Multiple Choice

30 sec

1 pt

What is the person doing from 5 seconds to 10 seconds?

Walking

Running

Standing Still

Walking Fast

43.

Multiple Choice

30 sec

1 pt

What is the average speed of the person during the first 5 seconds?

0 m/s

1 m/s

3 m/s

6 m/s

44.

Multiple Choice

5 mins

1 pt

What is velocity?

the quickness of an object

the location of an object

acceleration

speed in a specific direction

45.

Multiple Choice

5 mins

1 pt

Which runner won the race?

A

B

C

46.

Multiple Choice

2 mins

1 pt

If there are two forces going in the same direction how would you find the net force?

Subtract

Add

Neither

Multiply

47.

Multiple Choice

2 mins

1 pt

With unbalanced forces, the object will move in the direction of the _______ force.

larger

smaller

equal

48.

Multiple Choice

30 sec

1 pt

What is the FORCE?

5 N

10 N

400 N

0 N

49.

Multiple Choice

30 sec

1 pt

Which one is balanced?

top

bottom

both

50.

Multiple Choice

30 sec

1 pt

What is the net force?

5 N

45 N to the left

5 N to the right

45 N to the right

51.

Multiple Choice

15 mins

1 pt

What is the net force?

17 N Right

3 N Right

3 N Left

17 N Left