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WorksheetsGrade 10 end of year Quiz practice questions
Total questions: 110
Worksheet time: 2hrs 2mins
If the net force is equal to zero, the forces acting on the object are
balanced
unbalanced
Two forces act on an object to the right at the same time. What force is required to bring the object into equilibrium?
9 N to the right
9 N to the left
3 N to the left
18 N to the left
What is the formula for speed?
speed = distance x time
speed=distance / time
speed = time / distance
speed = distance + time
What does the solid line on this graph represent?
Constant speed
Acceleration
At rest
deceleration
What is the line on this graph showing?
moving away from starting point at a constant speed
moving back towards the starting point at a constant speed
acceleration (getting faster)
deceleration (getting slower)
What is represented by this graph?
constant speed
not moving
speed increasing
speed increasing at a constant rate
What is happening at E?
Stationary
Accelerating
Constant speed; moving away from the starting position
Constant speed; returning to start position
which of the following is a vector?
velocity
discance
position
speed
direction
Heat energy is also called
electrical energy
chemical energy
radiant energy
thermal energy
What energy transformations take place when a battery-operated radio is in use?
Electrical to chemical to light
Sound to chemical to kinetic
Chemical to electrical to sound
Light to electrical to thermal
At which point in the rollercoaster ride does the car have the greatest potential energy?
W
X
Y
Z
At which point will the pole have the maximum elastic potential energy?
The pole always has the greatest elastic potential energy.
When the vaulter is running with the pole.
When the pole is straight.
When the pole is bent backwards.
The hand generator works by turning the handle which lights up the bulb. What energy transformation occurs as the handle is turned?
Thermal to electrical
Electrical to kinetic
kinetic to electrical to light
Light to electrical
The picture shows a light bulb attached to a hand generator. What energy transformation occurs as the handle of the generator is turned?
thermal → solar → light
solar → light → electrical
kinetic → electrical → light
electrical → kinetic → light
A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?
100%
7%
93%
95%
A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?
5%
50%
55%
100%
The energy efficiency shown in this diagram is:
About 10%.
About 30%.
About 60%.
Impossible to tell.
An iPhone charger coverts 75J of electricty in to 50J of charge and 25J of thermal energy. How efficient is the charger?
10%
100%
33%
67%
What is the efficiency?
2%
20%
5%
15%
How much energy is wasted as thermal energy
24
16
14
12
How much efficient is the device?
70%
28%
72%
65%
The mass is 2kg what is the velocity of the object?
12.2 m/s
17.3 m/s
24.5 m/s
30 m/s
How much energy is wasted as sound?
350J
450J
250J
550J
According to Newton’s second law of motion, if force remains the same but mass increases, then acceleration will
increase
decreases
remain constant
Inertia is the resistance of an object to a change in its
gravity
motion
mass
balanced force
An object weighs 30N on earth. A second object weighs 30N on the moon. Which the greater mass? (Note: due to its size, the moon has less gravity than the earth.)
Object on moon
Object on earth
same mass
.
A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forced required to keep the puck sliding at constant velocity is
Equal to the weight of the puck
The weight of the puck divided by the mass of the puck
The mass of the puck multiplied by 9.8 m/s
Zero newtons
Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s2.Using Newton's Second Law, you can compute how much force Mike is applying to the car
(F= M x A)
50N
100N
5N
Whats Newtons First Law?
The more force applied to an object the faster it will accelerate.
An object in motion will stay in motion and an object at rest will stay at rest unless acted by an outside force.
for every ection there is an equal and oposite reaction
What is the Net Force?
10
0
3
2
When you hit a tennis ball with a racket...
The ball exerts more force on the racket
The ball and racket exert the same force on each other
The racket exerts more force on the ball
It depends on how hard you hit it
Find the momentum of a 3.0 kg mass when it is stopped.
0 kg*m/s
need to know the velocity
3.0 kg*m/s
9.8 kg * m/s
At what speed do the two blocks move after the collision?
2 m/s
5 m/s
10 m/s
What is the unit for momentum?
m/sec
kg/sec
kg/m
kg x m/sec
The Law of Conservation of Momentum states:
The total momentum before a collision is equal to the total momentum after a collision.
The total momentum before a collision is greater than the total momentum after a collision.
The total momentum before a collision is less than the total momentum after a collision.
The total momentum before a collision is not related to the total momentum after a collision.
A 7.5 kg purple bowling ball is rolling down the lane at 5 m/s. A 7.5 kg red bowling ball is rolling down another lane at 5 m/s. Which of the following statements is true?
Both bowling balls have the same momentum.
The purple bowling ball has a greater momentum.
The red bowling ball has a greater momentum.
The momentums of the bowling balls cannot be determined.
If you double the mass of an object but apply the same force apply on it, the acceleration will __________________.
double
cut in half
the same
zero
A car speeding up to get through a yellow traffic light is an example of .... (select all that apply)
balanced Forces
unbalanced Forces
acceleration
An impulse depends on
weight and force
force and time
electric charge and time
none of these
If the change of momentum of an object is 50kg m/s, we can say the impulse is equal to:
0 kg m/s
25 kg m/s
50 kg m/s
100 kg m/s
what is the product of force and displacement?
work
power
energy
what is the unit of work?
Newton
Joule
Watt
meter
if you push a cart with a force of 60 N for 2 m... how much work have you done
120 J
30 J
120 N
30 N
If 40N of force is applied to Rollo Koster's 10 kg cart over a distance of 50 meters, how much work is done?
8000J
8000N
4000J
2000J
Ahmed is out with his friends. Misfortune occurs and Ahmed and his friends find themselves getting a workout. They apply a cumulative force of 1000 N to push the car 200 m out of the sand. Determine the work done on the car.
2 x 105 J
2.70 x 104 J
3.2 x 10-4 J
3.54 x 105 J
Two people push on a wall with 100 N. The wall doesn’t move. How much work is done?
100J
100N
0J
0N
Power is measured in ___________.
meters
joules
newtons
watts
You do 40 Joules of work in 8 seconds. How much power did you exert?
0.2 watts
320 watts
5 watts
The law of Conservation of Energy says________
energy is constantly created
energy can not be created or destroyed instead it changes from one form to another
energy can not change forms
Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.
Person A
Person B
