WorksheetsSemester 1 Review
Total questions: 50
Worksheet time: 8mins
What is free fall?
Motion of an object under the influence of air resistance only
Motion of an object under the influence of a magnetic field
Motion of an object under the influence of friction only
Motion of an object under the influence of gravity only
What is the magnitude of the acceleration due to gravity on Earth?
20 m/s^2
5 m/s^2
9.8 m/s^2
12 m/s^2
What happens to the velocity of an object in free fall as it falls?
It remains constant
It decreases
It increases
It oscillates
Which of the following is possible for an object with balanced forces acting on it? (Choose all that apply)
at rest
moving at constant speed
changing direction
slowing down
Which diagram best shows person pushing a couch (accelerating) across the floor?
The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
normal
abnormal
static
inertia
The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?
None
Gravity
Gravity and Normal
Gravity, Normal, and Friction
Gravity, Normal, Friction, and Applied
Ted is trying to move a fridge through his house, he gets stuck on a carpet and even though he is pushing the fridge, it is not moving. What force is acting against him?
applied
static friction
kinetic friction
normal
Jane jogs 18 km in 2 hours. Then she walks for 6 km in 2 hours. Find her average speed.
9
3
12
6
Choose all ways an object can accelerate.
speed up
slow down
change direction
stay at a constant speed and never change direction
Natalie drops her skateboard into a bowl speeding up from 0 m/s to 4 m/s in 2.5 s. What is her average acceleration?
4 m/s
1.6 m/s/s
1.6 m
2.5 m/s/s
§If an object is simply dropped from an elevated height, then the _____________of the object is 0 m/s.
initial velocity
final velocity
acceleration
A ball is dropped from a cliff on Earth. Its final speed was 50 m/s. How long did it take for the ball to hit the ground?
5.1 s
490 s
.196 s
9.8 m/s2
Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.
2.96x10-7N
3.00x10-6N
2.22x10-9N
2.23x10-8N
As the distance between two objects increases, the pull of gravity...
Increases
Decreases
Stays the same
A Hot Wheels toy car races around a circular track that has a radius of 1.2 meters. It moves around the track with a tangential velocity of 1.8 m/s. What is the toy’s centripetal acceleration?
1.5 m/s^2
2.7 m/s^2
2.16 m/s^2
3.89 m/s^2
A 3,000 kg truck moving at +10 m/s hits a 1,000 kg parked car which moves off at +15 m/s after the collision. What is the velocity of the truck after the collision?
10 m/s
0 m/s
5 m/s
2 m/s
Which of these moves with a constant speed
A
B
C
A & B
A,B & C
Which of these moves with the slowest speed?
A
B
C
A & B
A,B & C
Inertia is a force
True
False
More mass = More inertia
True
False
What are the units for energy?
Joules (J)
Watts (W)
Kilograms (kg)
Newtons (N)
What amount of sunlight makes pea plants grow tallest? What is the independent variable?
height of pea plants
amount of sunlight
type of soil
On this velocity vs time graph, describe the motion of C.
constant positive velocity
constant negative velocity
positive acceleration
negative acceleration
On this velocity vs time graph, describe the motion of D.
constant positive velocity
constant negative velocity
positive acceleration
negative acceleration
On this position vs time graph, what is the velocity?
40 m/s
8 m/s
5 m/s
0 m/s
What is the velocity at 12.5 seconds?
0 m/s
2 m/s
10 m/s
20 m/s
Force is a
Vector
Scalar
A quantity described by magnitude and does not need direction
Vector
Scalar
What does magnitude mean?
amount or size
vector
frame of reference
motion
The independent variable always goes on the
x or horizontal axis
y or vertical axis
What is the correct unit for distance in kinematics?
m
ft
mi
km
What is the correct unit for velocity in kinematics?
m/min
mi/hr
d/t
m/s
What is the correct unit for acceleration in kinematics?
m/s
m/min2
m/s/t
m/s2
If an object comes to a stop in a problem, what is its final velocity?
Depends on the problem
0
Always positive
Always negative
If King Kong falls off a roof, which velocity is 0?
Final velocity
Original velocity
How do you choose the correct equation when solving a physics problem?
Choose the equation this is solved for what you are looking for
Ask the sorting hat
Close your eyes and point to an equation on the equation sheet
Choose an equation that includes enough given variables and has only 1 unknown variable
