# Physical Science Term 1 Review

70 Questions | Attempts: 131  Settings  • 1.
How much work was done if 5 N of force was used to move an object 25 meters?
• A.

30 Joules

• B.

125 Joules

• C.

5 Joules

• D.

20 Joules

• 2.
Which of the following statements are true about work?
• A.

Work is a form of energy.

• B.

A Watt is the standard metric unit of work.

• C.

Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

• D.

None of the above.

• 3.
Which of the following statements are true about potential energy?
• A.

Moving objects cannot have potential energy.

• B.

Both gravitational and elastic potential energy are dependent upon the mass of an object.

• C.

Potential energy is the energy stored in an object due to its position.

• D.

None of the above.

• 4.
An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and string. When released, the arrow will have a kinetic energy of ____ Joules.
• A.

50

• B.

More than 50

• C.

Less than 50

• D.

None of the above.

• 5.
A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of ____, but different amounts of ____.
• A.

Work, power

• B.

Force, work

• C.

Energy, work

• D.

None of the above.

• 6.
What is kinetic energy?
• A.

The energy an object has due to its motion

• B.

The stored energy of an object due to its position or condition

• C.

The energy an object might have if it existed

• 7.
What would have the greatest kinetic energy?
• A.

A car driving down a hill

• B.

A person running down a hill

• C.

A ball rolling down a hill

• 8.
A force that causes a change in motion is ...
• A.

Momentum

• B.

Balanced

• C.

Inertia

• D.

Unbalanced

• 9.
All of the forces that act on an object add up to equal...
• A.

Net Force

• B.

Inertia

• C.

Acceleration

• D.

Mass

• 10.
A force that acts in opposition to motion is called...
• A.

Gravity

• B.

Friction

• C.

Push

• D.

Pull

• 11.
The units for Power are?
• A.

Watts

• B.

Hertz

• C.

Pascals

• D.

Decibels

• 12.
If an object has kinetic energy, then it also must have _____.
• A.

Speed/velocity

• B.

Impulse

• C.

Acceleration

• D.

Force

• 13.
The tendency of an object to resist changes in its velocity is called:
• A.

Friction

• B.

Static Friction

• C.

Kinetic Friction

• D.

Inertia

• 14.
In order for work to be done there must be _________________________.
• A.

Mass

• B.

Power

• C.

Movement parallel to force

• D.

Time

• 15.
Your "weight" is properly defined as
• A.

The amount of material of which you are composed

• B.

The gravitational force which Earth exerts on you

• C.

The gravitational force you exert on Earth

• D.

The force you exert on a set of bathroom scales

• E.

None of the above

• 16.
A push or a pull on matter is called a ...
• A.

Inerita

• B.

Mass

• C.

Acceleration

• D.

Force

• 17.
Forces that do not cause changes in motion are ....
• A.

Momentum

• B.

Balanced

• C.

Inertia

• D.

Unbalanced

• 18.
How much matter is in an object is measured by
• A.

Volume

• B.

Mass

• C.

Temperature

• D.

Weight

• 19.
• A.

Force, Mass, and Acceleration

• B.

Volume

• C.

Momentum

• D.

Inertia

• 20.
If an object is moving at a constant velocity, the forces on it are:-
• A.

Unequal

• B.

Resolved

• C.

Forwards

• D.

Balanced

• E.

Opposite

• 21.
If a bicycle and rider of mass 80kg is accelerating at 1.5m/s2 the force pushing it is:-
• A.

0.02N

• B.

81.5N

• C.

120N

• D.

120m

• E.

120kg

• 22.
A motorcyclist of mass 250kg accelerates from rest to 20m/s in 4s. What is the force from the engine?
• A.

1250N

• B.

50N

• C.

1000N

• D.

5000N

• E.

20000N

• 23.
A seatbelt brings a passenger to a stop from 12m/s in just 2s. If the passenger has a mass of 60kg, what is the force exerted by the seatbelt?
• A.

720N

• B.

360N

• C.

10N

• D.

2.5N

• E.

0.25N

• 24.
Which of the following conditions have to be true when a parachutist reaches Terminal Velocity
• A.

The forces on her must be balanced

• B.

Her weight must be greater than air resistance

• C.

Her weight must be less than air resistance

• D.

Her speed must be greater than her weight

• E.

Her speed must be less than air resistance

• 25.
Does the speedometer of a car read average speed or instantaneous speed?
• A.

Average speed

• B.

Instantaneous speed

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