Free Printable Newton's 1st and 2nd laws of Motion

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Newton's 1st and 2nd laws of Motion

Total questions: 36

Worksheet time: 33mins

Name

Class

Date

What Unit do we measure Force in?

Newtons

Joules

Force

Don't know

Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?

first

second

third

fourth

You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.

20N

40N

10N

70N

If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals

twice the force with which it was fired

the same amount of force with which it was fired

1/2 the force with which it was fired

zero, since no force is requires to keep it moving.

Which has more Inertia?

Truck

Ant

A cat

A skateboard

A 20 kg bike accelerates at 10 m/s². what was the force

25 N

200 N

20 N

10 N

a push or pull

inertia

force

movment

friction

Suppose that a sled is accelerating at a rate of 2 m/s². If the net force is tripled then what is the new acceleration of the sled?

12 m/s/s

6 m/s/s

12 in/s/s

120 m/s/s

Which of Newtons laws best explains why football teams have big, large, fast athletes.

Gravity

second law

first law

Third law

10.

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s². Determine the mass of the encyclopedia?

m = 3.0 kg

m = 4.0 kg

m = 3.0 ml

m = 30.0 g

11.

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

remain in motion.

eventually come to a stop.

change its momentum.

accelerate.

12.

Pushing a child on a swing is easier than pushing an adult on the same swing.

1st Law

2nd Law

13.

A 20 kg bike accelerates at 10 m/s². what was the force

200 N

20 N

10 N

14.

Which type of force(s) will cause a change in an object's motion?

gravity

zero net force

balanced forces

unbalanced forces

15.

What happens to the velocity of a ball as it is dropped off a cliff?

It decreases at a uniform rate

It increases at a uniform rate

It is constant

It increases at a non-uniform rate

16.

What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (concept development page 4).

10, 20, 30, 40, 50 m/s

5, 10, 15, 20, 25 m/s

5, 20, 45, 80,125 m

10,10,10,10,10 m/s

17.

As a rock in FREE FALL falls through the air, Velocity

stays constant

decreases until it hits terminal velocity

increases until it hits terminal velocity

increases ~10 m/s each second

18.

In practice A of the figure, What is the magnitude of the resultant displacement?

5 km

8 km

11 km

15 km

19.

Which statement describes a vector?

It has magnitude but no direction

It has direction but no magnitude

It has both direction and magnitude

It has constant magnitude but no
direction

20.

Which of the following quantities are vectors?

speed, velocity, acceleration

velocity, acceleration, force

force, acceleration, mass

length, mass, time

21.

Calculate the net force on the box.

$\Sigma$ F = 0 N

$\Sigma$ Fx = 0 N, $\Sigma$ Fy = 0 N

$\Sigma$ F = -3 N

$\Sigma$ Fx = 0 N, $\Sigma$ Fy = -3 N

$\Sigma$ Fx= 0 N, $\Sigma$ Fy = 3 N

22.

The force acting upward on an object

suspended from a spring scale is called:

gravity

weight

tension

equlibrium

23.

“the sum of force = 0.” This is the mathematical representation of:

Net Force

Equlibrium

Vector

Scalar quantity

24.

mass, volume, speed represents examples of:

Vector quantity

Scalar quantity

25.

_______ has only magnitude.

Vector quantity

Scalar quantity

26.

_______ has magnitude and direction

Vector quantity

Scalar quantity

27.

A cart is pulled to the right with a force of 15 N while being pulled to the left with a force of 20 N. The net force on the cart is:

5 N to the left

A.5 N to the right

25 N to the left

25 N to the right

28.

The Net force applied on an object 6 N to the right and 4 N to the right is:

2 N to the left

2 N to the right

10 N to the right

0 N (no change in motion)

29.

Newtons 1st law of motion states:

An object in motion will stay in motion and an object in rest will stay in rest unless acted upon by and unbalance force.

For every action there is an equal and opposite reaction.

Acceleration is produced when a force. acts on a mass.

The greater the mass the greater the amount of force needed to change its motion.

30.

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec²

102.04 n

9,800 n

980 n

103 n

31.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec². What is the mass of the object?

100kg

1,250kg

50kg

5kg

32.

What is inertia?

How heavy an object is.

How fast an object is moving.

The movement of an object.

The resistance of an object to change in motion.

33.

The formula we get from the second law is...?

F = m*a

v = d/t

a = v/t

f = 1/T

34.

The Free Fall acceleration for Earth is or g equals what...?

9.8 m/s/s

10 m/s/s

98 m/s/s

2 m/s/s

35.

Variable that the SCIENTIST CHANGES or TESTS.

Control Variable

Variable

Dependent Variable

Independent Variable

36.

Variable that is MEASURED or OBSERVED; it DEPENDS on the independent variable.

Control Variable

Variable

Dependent Variable

Independent Variable

100 %

Newton's 1st and 2nd laws of Motion

Total questions: 36

Worksheet time: 33mins

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