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Year 10 Physics
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1.
1 point
To calculate acceleration
use velocity divide by time
use displacement divide by time
use speed divide by time
use distance divide by time
2.
1 point
Inertia is a:
force that resists motion.
tendency to resist motion
force that changes motion.
tendency to change motion.
3.
1 point
If the force of an object is 100N and the mass of the object is 50 kg. What is the acceleration of the object?
2 m/s
5000 m/s
100 m/s
50 m/s
4.
1 point
If a snail travels at a speed of 3 km/hr for 3 hours. How far does it travel?
9 km
6 km
1 km
9000 km
5.
1 point
Acceleration is best described as the rate of change in:
energy transfer
net force
position
speed
6.
1 point
A loaded semi-trailer travels from Melbourne to Bendigo, a distance of 150 km, in 3 hours. It unloads and returns to Melbourne in 2 hours. Without including the time taken to unload, the average speed for the whole journey is:
50 km/h
62.5 km/h
60 km/h
zero
7.
1 point
Which law is expressed as follows?
‘The size of an object’s acceleration depends directly on the size of the net unbalanced force acting on it and is inversely proportional to its mass.’
Galileo's law of inertia
Newton's second law
Newton's third law
Newton's first law
8.
1 point
A ticker timer is used in the laboratory to investigate motion. The time interval between five dots on the ticker tape is:
0.02 seconds
0.2 seconds
0.01 seconds
0.1 seconds
9.
1 point
Why does an object fall?
It just falls
The force of gravity pulls it down
Invisible ninjas are pulling it down
10.
1 point
An list of examples of forces are
thrust, friction, weight, acceleration
thrust, friction, normal force, weight
thrust, friction, weight, speed
thrust, friction, weight velocity
11.
1 point
A car is driven along a highway at an average speed of 90 km/h for 2 hours without a rest stop. What distance has it covered?
Not enough information is given to calculate
45 km
360 km
180 km
12.
1 point
Select the correct answer about a rocket engine.
A rocket takes off because the reaction force of the ground on the rocket overcomes the weight of the rocket.
Rocket engines are identical to jet engines in aircraft.
The exhaust gases produce a thrust that pushes the rocket upwards.
The oxygen used to burn the rocket fuel comes from the atmosphere.
13.
1 point
If the mass of a car is 200 kg and it is accelerating at 3m/s^2. The force is:
66.7 N
200 N
3 N
600 N
14.
1 point
Velocity is a measure of the rate:
of change in position.
at which speed increases.
at which distance is covered.
of change in acceleration.
15.
1 point
The time for a turtle to cross a 6 m track if it travels 3 m/hr is?
1hr
2hrs
18hrs
3hrs
16.
1 point
A class is studying Newton’s three laws.
The teacher asks a student wearing rollerblades to face the wall and push against it. The student moves backwards away from the wall. Which is the best explanation for her movement?
She used her feet to push herself away from the wall.
Her action of pushing resulted in a reaction force by the wall, in the opposite direction to her push.
The inertia of the student is responsible for her acceleration.
The push is a force and causes her to accelerate.
17.
1 point
The average acceleration of a drag-racing car that reaches a speed of 506 km/h in 4.6 seconds is:
4.6 km/h/s
110 km/h/s
510.6 km/h/s
506 km/h/s
18.
1 point
A car travelling at 60 km/h increases its speed to 100 km/h in 8 seconds. Its average acceleration is:
40 km/h/s
5 km/h/s
8 km/h/s
60 km/h/s
19.
1 point
In the formula F=ma. The units of the mass must be in
g
weight
kg
mass
20.
1 point
The average speed of an aeroplane that travels from Perth to Melbourne, a distance of 2730 km by air, in 3 hours is?
910 km/hr
3
8190
2739 km/hr
21.
1 point
The difference between velocity and speed is
velocity is a scalar and velocity is a vector
speed uses displacement and velocity uses distance
velocity is a vector and speed is a scalar
velocity only has a direction and speed has a direction and size
22.
1 point
A student walks a distance of 1.2 km to school in a time of 15 minutes. Which of the following statements are certain to be correct?
Her instantaneous velocity is 4.8 km/h.
Her instantaneous speed is 4.8 km/h.
Her average speed is 4.8 km/h.
Her average velocity is 4.8 km/h.
23.
1 point
A car manufacturer wants to produce cars that accelerate faster. Which changes in their cars would result in greater acceleration?
Decrease the forward force and increase the mass of the car.
Decrease both the forward force and the mass of the car.
Increase both the forward force by the engine and the mass of the car.
Increase the forward force and decrease the mass of the car.
24.
1 point
To calculate average velocity
use displacement divide by time
use distance divide by time
use velocity divide by time
use speed divide by time
25.
1 point
To calculate the average speed:
use distance divide by time
use velocity divide by time
use speed divide by time
use displacement divide by time
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