Font size
WorksheetsPhysics MP1 Benkmark Speed, Velocity, and Acceleration
Total questions: 109
Worksheet time: 56mins
IS units of speed
m/s
km/h
mph
mi/h
All of the above
How can you tell if an object is moving?
if is changing location or fixed point of reference
if is constant speed is 0 m/s
if it moves at an instant
if the velocity changes because of the distance
How can you be both at rest and also moving about 107,000 km/h at the same time?
meow
owo
As we rest the earth is moving non-stop. This is the rotation of the earth
You cover 10 meters in a time of 1 second. Is your speed the same if you cover 20 meters in 2 seconds?
owo
uwu
Yes, your speed is the same because you follow the same rate
Does the speedometer of a car read instantaneous speed or average speed?
instantaneous speed
average speed
If you ride a bike a distance of 5m in 1s, what is your speed?
what is your speed for 10m in 2s? For 100m in 20s
5m/s
10m/s
100m/s
50m/s
If an airplane travels 500km due north in 1 hour, what is the velocity?
250km/s
500km/s
125km/s
100km/s
if it travels 250 km due to north in half an hour, what is the velocity?
125km/h
625km/h
500km/h
250km/h
A ball released to roll down one plane would roll-up the other to reach nearly?
moving in a straight line
the same height
different heights
the same speed
______________ formulated the theory of moving earth
Newton
Locke
Copernicus
Galileo
If the force of gravity suddenly stopped acting on planets, they would?
follow an inconstant path in space
remain unchanged
move in different directions
move in a straight line (tangent)
The unit of mass is
Kilograms (Kg)
meters(m)
Newtons (N)
pounds (Ib)
The unit of weight is
Kilograms (kg)
option 1 & 3
Newton (N)
kg*m/s2
option 3 & 4
Weight is force due to
Strength
Mass
Gravity
Distance
The weight of a 10 kg object is
10 N
9.8 kg
9.8 N
.98 kg
The mass of a sheep that weights 125 N is
12.50 kg
125 kg
1.25 kg
250 kg
The force required to maintain an object at constant speed in a free space is equals to
9.8
10
0
1
Compared to its mass on earth, the mass of a 60 kg object on the moon is
the same
different
halved
doubled
compared to the weight on earth, a 60kg object on the moon will weight
36 N or less
1.6m/s2
60 N or more
less or 96 N
What is friction?
opposing or backward force between two surfaces in contact
owo
How do you convert mass into weight?
revisedddddddd
meow
m*g
Which has more mass, a kilogram of cotton or a kilogram of iron?
Cotton
Iron
none
both
What is equilibrium?
constant gravity
zero net force
acceleration due to gravity
inertia
Define inertia
mass measure of inertia
tendency of an object to resist change of state
the more mass, the greater the inertia
amount of matter in a body
force acting on a mass
Mass
measure of the amount of matter in a body
measured in newtons
measure of inertia
measure of the amount of force acting on a mass due to the acceleration due to gravity
Weight
Measure of inertia
increases with higher gravity, decreases with lower gravity
measure of the amount of force acting on a mass due to the acceleration due to gravity
scalar quantity
vector quantity
An object weighs 50 N on earth. A second object weights 50 N on the moon. Which has greater mass?
object 1: 50N/9.8
object 2: 50N/1.6
both objects have the same mass
The name of the astronomer who firstly published a statement on the earth revolves around the sun is Galileo
True
False
Friction refers to the force between two surfaces that are sliding past each other
True
False
A force can be simply defined as a push or a pull
True
False
The force due to gravity acting on an object is mass
True
False
If a hockey puck were to slide on a perfectly frictionless surface, it will eventually slow down because of its inertia
True
False
The SI unit of mass is the Newton
True
False
An astronaut weighs the same on the Earth as in space
True
False
Inertia is the property that every object has, inertia resists changes in an objects state of motion
True
False
When an object reaches terminal velocity, its acceleration is
0.1 m/s2
1 m/s2
10 m/s2
0 m/s2
Acceleration is inversely proportional to
Net Force
Mass
Velocity
Weight
Acceleration is _____________proportional to the net force
inversely
commonly
directly
partially
A rock is thrown vertically into the air. At the very top of its trajectory the net force on it is
its weight
its mass
its distance
its acceleration
An apple weights 1 N. The net force on the apple when it is in free fall is
0.1 N
10 N
1 N
9.8 N
A boy pulls on a 20 kg wagon with a constant force of 50 N. What is he wagon's acceleration?
0.4 m/s2
1,000 m/s2
2.5 m/s2
8 m/s2
If the force acting on an object doubles, the object's acceleration
halves
doubles
fourths
eighths
A book weighs 8 N. When held at rest in your hands, the net force on the book is
8 N
0.8 N
1.2 N
0 N
A force of 6 N accelerates a mass of 6 kg at the rate of 1 m/s2. The acceleration of a mass of 12 kg acted upon by a force of 12 N is
1 m/s2
2 m/s2
72 m/s2
12 m/s2
The unit of force is
Kilograms
Newtons
Kelvin
Meters
The unit of mass is
Kilograms
Newtons
Kelvin
Meters
The unit of weight is
Kilograms
Newtons
Kelvin
Meters
At the terminal speed, the force of air resistance balances the ________________ of the object
Mass
Displacement
Weight
Shape
Acceleration equals net force divided by
Mass
Displacement
Weight
Time
The acceleration of all objects in free fall is equal to
0 m/s2
9.8 m/s2
10 m/s2
980 m/s2
When the mass of an object doubles, its acceleration
halves
doubles
fourths
eights
The terminal speed for a person parachuting is about
15 km/h
10 km/h
30 km/h
25 km/h
A 10 N falling object encounters 2 N of air resistance. The magnitude of the force acting on the object is
12 N
20 N
8 N
5 N
You pull horizontally on a 50 kg crate with a force of 450 N and the friction force on the crate is 250 N. What is its acceleration?
Fnet=450N - 250N= 200N
Mass= 50 kg soooo, a=Fnet/m= 200N/50kg= 4m/s2 =acceleration
4m/s2
9m/s2
5m/s2
A jet has a mass of 40,000 kg. The thrust for each four engines is 20,000 N. What is the jet's acceleration
Fnet=20,0000 & m=40,0000 sooooo a=Fnet/m=20,0000/40,000=0.5m/s2
2m/s2
0.5m/s2
Fnet=20,000*4 & m=40,000kg soooooo a=Fnet/m= 80,0000/40,000= 2m/s2= acceleration
What is terminal speed (or velocity)?
the tendency of an object to resist a change of state
Drag force----->downward (force of gravity acting on the object
The highest velocity attainable by an object as it falls through a fluid (air is the most common example)
The net force on the object is zero, the object has zero acceleration
A tennis ball and a steel ball will accelerate at the same rate in the absence of air resistance. Why?
They have the same mass
Free fall
acceleration due to gravity regardless of their mass
they are different objects
Forces always occur in
patterns
with a strong object only
with only one object
pairs
A person is attached towards the center of earth by a 600N gravitational force. The force with which Earth is attracted toward the person is
6N
60N
600N
6000N
Bronco the skydiver falls toward Earth. The attraction of Earth on Bronco pulls him down. The reaction to this force is
Bronco pulls on earth
earth pulls on Bronco
space pulls on earth
Bronco pulls on space
Nellie Newton holds an apple in her hand. If action is earth pulling on the apple, then reaction is
Nellie on apple
earth on apple
apple on earth
earth on Nellie
A rocket is able to accelerate in the vacuum of space when it fires its engines. The force that propels the rocket is the force
of potential energy
exerted by exhaust gases
gravitational pull
accelerating
A force is exerted on the tires of a car to accelerate the car along the road. The force is exerted by
the road
the car
the earth
the air resistance
A boy weights 450 N sits on the floor. The boy exerts a force on the floor of
0 N
45 N
450 N
4500 N
An object is attracted towards the center of the earth by a 50 N gravitational force. The force with which the earth is attracted toward the object is
0 N
50 N
500 N
5,000 N
A car accelerates along a road. The force that moves the car is exerted by
the car
the road
the air resistance
the earth
If you hit a wall with a force of 200N, how much force is exerted on you?
0 N
20 N
200 N
2000 N
When you walk along a floor, what pushes you along?
the earth
your body
the movement
the floor
A player catches a ball. The action force is the impact of the ball against the player's glove. What is the reaction to this force?
ball on the air
player's glove on ball
ball against the player's glove
player's glove on air
A 60kg person on a line pushes against a wall with a force of 30 N and recoils. What acceleration does that person experiences?
0.5m/s2
2m/s2
1,800m/s2
10m/s2
Whenever one object exerts a force on a second object, the second object exerts a________ and _________force on the first object. This is called Newton's____________
opposite, different, 3rd law
equal, gravitational, 2nd law
opposite, equal, 2nd law
equal, opposite, 3rd law
Action and ______________ forces act simultaneously
reaction
recoiling
contemporary
independent
Reaction forces occur slightly after the action force is applied
True
False
Action and reaction forces are equal and opposite only under certain conditions
True
False
In order to make a cart move forward, a horse must pull harder on the cart than the cart pulls on the horse
True
False
A bicycle and a parked car have a head-on collision. The force of impact is greater on the bicycle
True
False
A boy pulls on a 20kg wagon with a constant force of 50 N. What is the wagon's acceleration?
1000m/s2
0.4m/s2
2.5m/s2
1m/s2
A sailboat and its crew have a combined mass of 655kg. If the sailboat experiences an unbalanced force of 895 N, pushing it forward, what is the sailboat's acceleration?
1.3m/s2
0.73m/s2
586,225m/s2
9.8m/s2
A car starts from rest and after 10 seconds it is moving at 60m/s. What is the car's average acceleration?
0m/s2
6m/s2
0m/s
6m/s
Find your average speed if you run 50 m in 10s
0m/s
0.5m/s
500m/s
5m/s
How far will you travel if you maintain an average speed of 10m/s for 40s? instantaneous speed problem d=v*t
0m
4m
40m
400m
What is the acceleration of a ball that starts from rest and rolls down a ramp, gaining a speed of 25m/s in 5s?
0m/s2
0.2m/s2
5m/s2
10m/s2
What is the acceleration of a cart that goes from rest to a speed of 50m/s in 10s?
0m/s2
5m/s2
2m/s2
0.5m/s2
An apple drops from a tree and hits the ground in 1.5s. What is its speed just before it hits the ground? instantaneous speed problem v=g*t
1.5m/s
10m.s
3m/s
15m/s
What is the net force acting on an object traveling in a straight line with constant speed?
10=net force
0= net force
object is on equilibrium
object is speeding up
Distinguish between distance and displacement
distance= adding up
distance = shortest movement
displacement = shortest distance
displacement =more movement as time goes by
A ball is thrown straight up. What will it be its instantaneous speed and acceleration at the top of its trajectory?
instantaneous speed = 0 m/s2
acceleration = 10 m/s
instantaneous speed= 0 m/s
acceleration = 10 m/s2
What does the slope on a displacement-versus-time graph represent?
average speed
distance
velocity
movement
What does the slope on a velocity-versus-time graph represent?
average speed
acceleration
position
velocity
Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 8 second? distance= 1/2 gt2 & inst speed v=gt
Instantaneous speed = 8 m/s
Instantaneous speed = 80 m/s
distance = 320 m
distance = 640 m
Find the speed required to throw a ball straight up and have it return 6 seconds later
3 seconds to go up
3 seconds to go down
A ball is thrown straight up at a speed of 20 m/s.
a) calculate the time it takes to return to is starting point
b) calculate the displacement
time = 2 s
displacement = 0
displacement = 20 m/s
time = 4 s (2s up & 2s down)
A car accelerates at 4m/s2. Assuming the car starts from rest, how much time does it need to travel a distance of 32m? use d=1/2at2
t= 1s
t=4s
t=12s
t=16s
A 10 N falling object encounters 2 N of air resistance. The magnitude of the force acting on the object is (opposite forces are always subtracted)
20 N upward
5 N downward
8 N downward
12 N upward
A 15 N force and a 50 N force act on an object in opposite directions. what is the net force on the object?
35N
65N
3.3N
750N
Calculate the mass of a box that weighs 150N (w=mg)
1.5kg
0.67kg
150kg
15kg
If Joe rides south on his bike in a straight line for 10s with an average speed of 20m/s, how far has he ridden?
20m
200m
2m
0.2m
During a race on level ground, Andra runs with an average velocity of 6.02m/s to the east. What distance does Andra cover in 137 seconds?
d=6.02 m/s2*137=825m
owo
825m
uwu
Define scalar and vector quantities with examples
vector-velocity-80m/s--->forward(east, etc) DIRECTION
scalar-speed/-80m/s
vector-speed-80m/s--->forward(east, etc) DIRECTION
scalar-velocity-80m/s
Calculate the weight of a 30kg box
0 N
3 N
30 N
300 N
Calculate the mass of a 500 N box
0 kg
5kg
50kg
500kg
A car accelerates at 6m/s2. assuming the car starts from rest, how much time does it need to travel a distance of 75m? d=1/2at2
0.5s
5s
10s
25s
A truck is driven 50 kilometers during the first 0.50 hour of travel, 25 kilometers during the next 0.25 hour, and 40 kilometers in the final 0.50 hour. What is the truck's average speed for the entire trips? (add all the given distances, then add the hours, divide d/t)
50 + 25 + 40 = 115
0.5 + 0.25 + 0.5 = 1.25
115 + 1.25 = 240/2=120km/h
115km/ 1.25=92km/h
which object has a greater inertia?
60 kg mass moving at 10m/s
50kg mass moving at 20m/s
Does a speedometer of a car read instantaneous speed?
Yes
No
Does the speedometer of a car measure the car's velocity?
Yes
No
A bus travels 280 km south along a straight path in 3 hours. The bus stops for 24 mins, then it travels 210 km south in 2.3 hours. How long does the the total trip last?
1.1hrs
3.4hrs
5.7hrs
2.3hrs
A bus travels 280 km south along a straight path in 3 hours. The bus stops for 24 mins, then it travels 210 km south in 2.3 hours. What is the average velocity for the total trip?
210 km
490 km
0.01 km
86 km
A car accelerates uniformly in a straight line from rest at the rest of 2.3 m/s2. How long doe it take the car to travel 55m? (use d=1/2at2)
42.80s
6.5s
1.15s
0s
