Free Printable Newton's Laws, Torque & UG Review

1.

Match the following

a)

Inertia

1.

Newtons 1st Law

b)

F=MA

2.

Newton's 2nd LawF=MA

c)

Equal and Opposite Forces Interacting

3.

Newton's 3rd Law

d)

The attracted force between two objects

4.

Universal Gravitation

e)

$\frac{Gm_1m_2}{r^2}$ or

m*g

5.

Fg=

2.

Reorder the following steps to solve for this word problem:

Two asteroids that have masses of 1.8 x 10^9 kg and 9.2 x 10^16 kg. Their centers are separated by a distance of 2500 m. Find the gravitational force between them.

a)

$M_1$ = 1.8E9 Kg

$M_2$ =9.2E16 Kg

$r$ =1000 m

$G$ =6.67E-11

b)

$Fg=\frac{Gm_1m_2}{r^2}$

c)

$Fg=\ \left(\frac{\left(6.67E-11\right)\left(1.8E9\right)\left(9.2E16\right)}{1000^2}\right)$

d)

$\frac{1.10E16}{1E6}$

e)

1.1E10N

1)

2)

3)

4)

5)

3.

Match the following

a)

Kg

1.

Mass

b)

m

2.

Radius

c)

N

3.

Force

d)

$\frac{m}{s^2}$

4.

Acceleration

e)

Nm

5.

Torque

4.

Two identical asteroids are initially at rest when the gravitational attraction between the two asteroids causes them to move.

How will their motion happen?

a)

They will accelerate towards each other at a constant rate the whole time

b)

They will accelerate towards each other at an increasing rate every moment.

c)

They will slow down their motion as they get closer to one another.

d)

They will move at a constant velocity towards each other.

5.

Which object will have the highest gravity?

a)

Earth

b)

Moon

c)

Venus

d)

Jupiter

6.

Match the following

a)

Force

1.

X-Axis

b)

Acceleration

2.

Y-Axis

c)

$\frac{F}{A}$

3.

mass=

d)

$3\ \frac{m}{s^2}$

4.

When F=0.75N,

A=?

7.

Remember in math: What you do to one side of the equation, you do to the other.

With F=MA,

If you double the Force, what will happen to the acceleration?

a)

The acceleration will double

b)

The acceleration will be halved

c)

The acceleration will be tripled

d)

The acceleration will not change.

8.

Match the following to work through calculating the acceleration of this 1500 kg vehicle.

a)

(Ff) + (Fgp)

(-8000) + (2000 )

1.

Fx(net)

b)

M*A

2.

Fnet=

c)

$\frac{F\left(net\right)}{Mass}$

3.

A=

d)

1500 kg

4.

Mass

e)

-6000N

5.

Fx (net)

9.

Reorder the following process to determine how much friction is applied to this 50 kg box accelerating at $5\ \frac{m}{s^2}$ .

a)

m= 50 kg

a = $5\ \frac{m}{s^2}$

Fx(net) =?

b)

Fx(net)=ma

c)

F(net) =50*5

Fx(net) = 250N

d)

F(net)=Ff + Fp

Ff=F(net) - Fp

e)

Ff=F(net) - Fp

Ff= 250-700

Ff=-450N

1)

2)

3)

4)

5)

10.

T=Fr

Which labeled givens will result with the highest torque.

a)

F=1

r=2

b)

F=2

r=2

c)

F=1

r=1

d)

F=1

r=2

11.

Reorder the following to solve how much torque this wrench has. The radius from the center to the end is 0.10m with 20N of force.

a)

F= 20N

r= 0.10m

T=?

b)

T=Fr

c)

T=20*0.10

d)

T=2Nm

1)

2)

3)

4)

12.

Reorder the following to solve how much Force this engine's pistons have. The engine's crankshaft has a length of 0.75m from the pivot point. It creates approximately 100Nm of Torque.

a)

T=100 Nm

r= 0.75m

F=?

b)

$T=Fr$ therefore...

$F=\frac{T}{r}$

c)

F=100/0.75

d)

F=133.3N

1)

2)

3)

4)

13.

If this box is traveling at a constant 20 m/s towards you from this screen, will its motion be changed after these forces are applied?

a)

yes

b)

no

14.

This box is traveling at a constant 20 m/s from this screen towards you when these forces are applied?

What is the new motion of the box?

a)

it is at rest

b)

it accelerates towards you.

c)

it accelerates to the right

d)

It remains moving at the constant 20 m/s velocity.

Newton's Laws, Torque & UG Review

Total questions: 14

Worksheet time: 15mins

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